Home / 10,188.91-15,272.88-4,269.28

Finding the Fourth Proportional to 10,188.91, 15,272.88 and 4,269.28

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Solution

The fourth proportional to 10,188.91, 15,272.88 and 4,269.28 is: 6,399.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.91 : 15,272.88 = 4,269.28 : x
  2. Step 2: Convert to fraction form
    10,188.91/15,272.88 = 4,269.28/x
  3. Step 3: Cross multiply
    10,188.91x = 15,272.88 × 4,269.28
  4. Step 4: Simplify right side
    10,188.91x = 65,204,201.13
  5. Step 5: Solve for x
    x = 65,204,201.13/10,188.91
  6. Step 6: Final answer
    x = 6,399.53

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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.