Home / 14,451.38-21,678.52-3,921.56

Finding the Fourth Proportional to 14,451.38, 21,678.52 and 3,921.56

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Solution

The fourth proportional to 14,451.38, 21,678.52 and 3,921.56 is: 5,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,451.38 : 21,678.52 = 3,921.56 : x
  2. Step 2: Convert to fraction form
    14,451.38/21,678.52 = 3,921.56/x
  3. Step 3: Cross multiply
    14,451.38x = 21,678.52 × 3,921.56
  4. Step 4: Simplify right side
    14,451.38x = 85,013,709.28
  5. Step 5: Solve for x
    x = 85,013,709.28/14,451.38
  6. Step 6: Final answer
    x = 5,882.74

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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.