Home / 10,678.38-15,997.51-9,872.83

Finding the Fourth Proportional to 10,678.38, 15,997.51 and 9,872.83

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Solution

The fourth proportional to 10,678.38, 15,997.51 and 9,872.83 is: 14,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.38 : 15,997.51 = 9,872.83 : x
  2. Step 2: Convert to fraction form
    10,678.38/15,997.51 = 9,872.83/x
  3. Step 3: Cross multiply
    10,678.38x = 15,997.51 × 9,872.83
  4. Step 4: Simplify right side
    10,678.38x = 157,940,696.65
  5. Step 5: Solve for x
    x = 157,940,696.65/10,678.38
  6. Step 6: Final answer
    x = 14,790.70

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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.