Home / 10,378.60-15,572.45-3,806.66

Finding the Fourth Proportional to 10,378.60, 15,572.45 and 3,806.66

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Solution

The fourth proportional to 10,378.60, 15,572.45 and 3,806.66 is: 5,711.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.60 : 15,572.45 = 3,806.66 : x
  2. Step 2: Convert to fraction form
    10,378.60/15,572.45 = 3,806.66/x
  3. Step 3: Cross multiply
    10,378.60x = 15,572.45 × 3,806.66
  4. Step 4: Simplify right side
    10,378.60x = 59,279,070.96
  5. Step 5: Solve for x
    x = 59,279,070.96/10,378.60
  6. Step 6: Final answer
    x = 5,711.66

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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.