Home / 18,013.92-27,002.40-7,490.04

Finding the Fourth Proportional to 18,013.92, 27,002.40 and 7,490.04

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Solution

The fourth proportional to 18,013.92, 27,002.40 and 7,490.04 is: 11,227.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,013.92 : 27,002.40 = 7,490.04 : x
  2. Step 2: Convert to fraction form
    18,013.92/27,002.40 = 7,490.04/x
  3. Step 3: Cross multiply
    18,013.92x = 27,002.40 × 7,490.04
  4. Step 4: Simplify right side
    18,013.92x = 202,249,056.10
  5. Step 5: Solve for x
    x = 202,249,056.10/18,013.92
  6. Step 6: Final answer
    x = 11,227.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.