Home / 10,319.28-15,435-6,149.76

Finding the Fourth Proportional to 10,319.28, 15,435 and 6,149.76

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Solution

The fourth proportional to 10,319.28, 15,435 and 6,149.76 is: 9,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.28 : 15,435 = 6,149.76 : x
  2. Step 2: Convert to fraction form
    10,319.28/15,435 = 6,149.76/x
  3. Step 3: Cross multiply
    10,319.28x = 15,435 × 6,149.76
  4. Step 4: Simplify right side
    10,319.28x = 94,921,545.60
  5. Step 5: Solve for x
    x = 94,921,545.60/10,319.28
  6. Step 6: Final answer
    x = 9,198.47

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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.