Home / 18,398.31-27,614.79-9,639.38

Finding the Fourth Proportional to 18,398.31, 27,614.79 and 9,639.38

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Solution

The fourth proportional to 18,398.31, 27,614.79 and 9,639.38 is: 14,468.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.31 : 27,614.79 = 9,639.38 : x
  2. Step 2: Convert to fraction form
    18,398.31/27,614.79 = 9,639.38/x
  3. Step 3: Cross multiply
    18,398.31x = 27,614.79 × 9,639.38
  4. Step 4: Simplify right side
    18,398.31x = 266,189,316.36
  5. Step 5: Solve for x
    x = 266,189,316.36/18,398.31
  6. Step 6: Final answer
    x = 14,468.14

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1.5x scale

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.