Home / 18,654.31-25,742.36-11,098.91

Finding the Fourth Proportional to 18,654.31, 25,742.36 and 11,098.91

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Solution

The fourth proportional to 18,654.31, 25,742.36 and 11,098.91 is: 15,316.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.31 : 25,742.36 = 11,098.91 : x
  2. Step 2: Convert to fraction form
    18,654.31/25,742.36 = 11,098.91/x
  3. Step 3: Cross multiply
    18,654.31x = 25,742.36 × 11,098.91
  4. Step 4: Simplify right side
    18,654.31x = 285,712,130.30
  5. Step 5: Solve for x
    x = 285,712,130.30/18,654.31
  6. Step 6: Final answer
    x = 15,316.14

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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.