Home / 18,631.38-25,711.17-10,566.56

Finding the Fourth Proportional to 18,631.38, 25,711.17 and 10,566.56

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Solution

The fourth proportional to 18,631.38, 25,711.17 and 10,566.56 is: 14,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.38 : 25,711.17 = 10,566.56 : x
  2. Step 2: Convert to fraction form
    18,631.38/25,711.17 = 10,566.56/x
  3. Step 3: Cross multiply
    18,631.38x = 25,711.17 × 10,566.56
  4. Step 4: Simplify right side
    18,631.38x = 271,678,491.92
  5. Step 5: Solve for x
    x = 271,678,491.92/18,631.38
  6. Step 6: Final answer
    x = 14,581.77

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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.