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Finding the Fourth Proportional to 8,464.76, 11,681.06 and 4,688.08

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Solution

The fourth proportional to 8,464.76, 11,681.06 and 4,688.08 is: 6,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,464.76 : 11,681.06 = 4,688.08 : x
  2. Step 2: Convert to fraction form
    8,464.76/11,681.06 = 4,688.08/x
  3. Step 3: Cross multiply
    8,464.76x = 11,681.06 × 4,688.08
  4. Step 4: Simplify right side
    8,464.76x = 54,761,743.76
  5. Step 5: Solve for x
    x = 54,761,743.76/8,464.76
  6. Step 6: Final answer
    x = 6,469.38

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Find fourth proportional to 4,232.38, 5,840.53 and 2,344.04
Half scale
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Double scale
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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.