Home / 10,531.56-15,800.22-4,287.72

Finding the Fourth Proportional to 10,531.56, 15,800.22 and 4,287.72

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Solution

The fourth proportional to 10,531.56, 15,800.22 and 4,287.72 is: 6,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.56 : 15,800.22 = 4,287.72 : x
  2. Step 2: Convert to fraction form
    10,531.56/15,800.22 = 4,287.72/x
  3. Step 3: Cross multiply
    10,531.56x = 15,800.22 × 4,287.72
  4. Step 4: Simplify right side
    10,531.56x = 67,746,919.30
  5. Step 5: Solve for x
    x = 67,746,919.30/10,531.56
  6. Step 6: Final answer
    x = 6,432.75

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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.