Home / 19,471.91-26,872.11-10,974.38

Finding the Fourth Proportional to 19,471.91, 26,872.11 and 10,974.38

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Solution

The fourth proportional to 19,471.91, 26,872.11 and 10,974.38 is: 15,145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.91 : 26,872.11 = 10,974.38 : x
  2. Step 2: Convert to fraction form
    19,471.91/26,872.11 = 10,974.38/x
  3. Step 3: Cross multiply
    19,471.91x = 26,872.11 × 10,974.38
  4. Step 4: Simplify right side
    19,471.91x = 294,904,612.18
  5. Step 5: Solve for x
    x = 294,904,612.18/19,471.91
  6. Step 6: Final answer
    x = 15,145.13

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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.