Home / 10,319.38-15,469.89-4,472.80

Finding the Fourth Proportional to 10,319.38, 15,469.89 and 4,472.80

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Solution

The fourth proportional to 10,319.38, 15,469.89 and 4,472.80 is: 6,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.38 : 15,469.89 = 4,472.80 : x
  2. Step 2: Convert to fraction form
    10,319.38/15,469.89 = 4,472.80/x
  3. Step 3: Cross multiply
    10,319.38x = 15,469.89 × 4,472.80
  4. Step 4: Simplify right side
    10,319.38x = 69,193,723.99
  5. Step 5: Solve for x
    x = 69,193,723.99/10,319.38
  6. Step 6: Final answer
    x = 6,705.22

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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.