Home / 12,654.28-17,462.14-7,620.13

Finding the Fourth Proportional to 12,654.28, 17,462.14 and 7,620.13

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Solution

The fourth proportional to 12,654.28, 17,462.14 and 7,620.13 is: 10,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.28 : 17,462.14 = 7,620.13 : x
  2. Step 2: Convert to fraction form
    12,654.28/17,462.14 = 7,620.13/x
  3. Step 3: Cross multiply
    12,654.28x = 17,462.14 × 7,620.13
  4. Step 4: Simplify right side
    12,654.28x = 133,063,714.17
  5. Step 5: Solve for x
    x = 133,063,714.17/12,654.28
  6. Step 6: Final answer
    x = 10,515.32

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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.