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Finding the Fourth Proportional to 10,348.50, 15,520.02 and 4,503.78

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Solution

The fourth proportional to 10,348.50, 15,520.02 and 4,503.78 is: 6,754.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.50 : 15,520.02 = 4,503.78 : x
  2. Step 2: Convert to fraction form
    10,348.50/15,520.02 = 4,503.78/x
  3. Step 3: Cross multiply
    10,348.50x = 15,520.02 × 4,503.78
  4. Step 4: Simplify right side
    10,348.50x = 69,898,755.68
  5. Step 5: Solve for x
    x = 69,898,755.68/10,348.50
  6. Step 6: Final answer
    x = 6,754.48

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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.