Home / 10,381.11-15,572.52-4,378.92

Finding the Fourth Proportional to 10,381.11, 15,572.52 and 4,378.92

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Solution

The fourth proportional to 10,381.11, 15,572.52 and 4,378.92 is: 6,568.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.11 : 15,572.52 = 4,378.92 : x
  2. Step 2: Convert to fraction form
    10,381.11/15,572.52 = 4,378.92/x
  3. Step 3: Cross multiply
    10,381.11x = 15,572.52 × 4,378.92
  4. Step 4: Simplify right side
    10,381.11x = 68,190,819.28
  5. Step 5: Solve for x
    x = 68,190,819.28/10,381.11
  6. Step 6: Final answer
    x = 6,568.74

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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.