Home / 15,252.40-21,046.92-8,538.16

Finding the Fourth Proportional to 15,252.40, 21,046.92 and 8,538.16

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Solution

The fourth proportional to 15,252.40, 21,046.92 and 8,538.16 is: 11,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,252.40 : 21,046.92 = 8,538.16 : x
  2. Step 2: Convert to fraction form
    15,252.40/21,046.92 = 8,538.16/x
  3. Step 3: Cross multiply
    15,252.40x = 21,046.92 × 8,538.16
  4. Step 4: Simplify right side
    15,252.40x = 179,701,970.47
  5. Step 5: Solve for x
    x = 179,701,970.47/15,252.40
  6. Step 6: Final answer
    x = 11,781.88

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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.