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Finding the Fourth Proportional to 10,508.70, 15,763.03 and 3,937.98

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Solution

The fourth proportional to 10,508.70, 15,763.03 and 3,937.98 is: 5,906.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508.70 : 15,763.03 = 3,937.98 : x
  2. Step 2: Convert to fraction form
    10,508.70/15,763.03 = 3,937.98/x
  3. Step 3: Cross multiply
    10,508.70x = 15,763.03 × 3,937.98
  4. Step 4: Simplify right side
    10,508.70x = 62,074,496.88
  5. Step 5: Solve for x
    x = 62,074,496.88/10,508.70
  6. Step 6: Final answer
    x = 5,906.96

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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.