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Finding the Fourth Proportional to 12,441.69, 17,169.84 and 6,776.76

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Solution

The fourth proportional to 12,441.69, 17,169.84 and 6,776.76 is: 9,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.69 : 17,169.84 = 6,776.76 : x
  2. Step 2: Convert to fraction form
    12,441.69/17,169.84 = 6,776.76/x
  3. Step 3: Cross multiply
    12,441.69x = 17,169.84 × 6,776.76
  4. Step 4: Simplify right side
    12,441.69x = 116,355,884.92
  5. Step 5: Solve for x
    x = 116,355,884.92/12,441.69
  6. Step 6: Final answer
    x = 9,352.10

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Find fourth proportional to 6,220.85, 8,584.92 and 3,388.38
Half scale
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Double scale
Find fourth proportional to 12,442.69, 17,171.22 and 6,777.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.