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Finding the Fourth Proportional to 8,166.76, 11,267.94 and 4,809.16

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Solution

The fourth proportional to 8,166.76, 11,267.94 and 4,809.16 is: 6,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.76 : 11,267.94 = 4,809.16 : x
  2. Step 2: Convert to fraction form
    8,166.76/11,267.94 = 4,809.16/x
  3. Step 3: Cross multiply
    8,166.76x = 11,267.94 × 4,809.16
  4. Step 4: Simplify right side
    8,166.76x = 54,189,326.33
  5. Step 5: Solve for x
    x = 54,189,326.33/8,166.76
  6. Step 6: Final answer
    x = 6,635.35

Related Problems

Find fourth proportional to 4,083.38, 5,633.97 and 2,404.58
Half scale
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Double scale
Find fourth proportional to 8,167.76, 11,269.32 and 4,810.16
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.