Home / 10,135.29-15,200.10-4,287.90

Finding the Fourth Proportional to 10,135.29, 15,200.10 and 4,287.90

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Solution

The fourth proportional to 10,135.29, 15,200.10 and 4,287.90 is: 6,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.29 : 15,200.10 = 4,287.90 : x
  2. Step 2: Convert to fraction form
    10,135.29/15,200.10 = 4,287.90/x
  3. Step 3: Cross multiply
    10,135.29x = 15,200.10 × 4,287.90
  4. Step 4: Simplify right side
    10,135.29x = 65,176,508.79
  5. Step 5: Solve for x
    x = 65,176,508.79/10,135.29
  6. Step 6: Final answer
    x = 6,430.65

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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.