Home / 18,616.43-27,929.21-10,178.87

Finding the Fourth Proportional to 18,616.43, 27,929.21 and 10,178.87

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Solution

The fourth proportional to 18,616.43, 27,929.21 and 10,178.87 is: 15,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.43 : 27,929.21 = 10,178.87 : x
  2. Step 2: Convert to fraction form
    18,616.43/27,929.21 = 10,178.87/x
  3. Step 3: Cross multiply
    18,616.43x = 27,929.21 × 10,178.87
  4. Step 4: Simplify right side
    18,616.43x = 284,287,607.25
  5. Step 5: Solve for x
    x = 284,287,607.25/18,616.43
  6. Step 6: Final answer
    x = 15,270.79

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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.