Home / 10,545.38-15,818.09-3,149.26

Finding the Fourth Proportional to 10,545.38, 15,818.09 and 3,149.26

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Solution

The fourth proportional to 10,545.38, 15,818.09 and 3,149.26 is: 4,723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.38 : 15,818.09 = 3,149.26 : x
  2. Step 2: Convert to fraction form
    10,545.38/15,818.09 = 3,149.26/x
  3. Step 3: Cross multiply
    10,545.38x = 15,818.09 × 3,149.26
  4. Step 4: Simplify right side
    10,545.38x = 49,815,222.82
  5. Step 5: Solve for x
    x = 49,815,222.82/10,545.38
  6. Step 6: Final answer
    x = 4,723.89

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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.