Home / 7,147.29-9,863.19-4,003.50

Finding the Fourth Proportional to 7,147.29, 9,863.19 and 4,003.50

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Solution

The fourth proportional to 7,147.29, 9,863.19 and 4,003.50 is: 5,524.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.29 : 9,863.19 = 4,003.50 : x
  2. Step 2: Convert to fraction form
    7,147.29/9,863.19 = 4,003.50/x
  3. Step 3: Cross multiply
    7,147.29x = 9,863.19 × 4,003.50
  4. Step 4: Simplify right side
    7,147.29x = 39,487,281.17
  5. Step 5: Solve for x
    x = 39,487,281.17/7,147.29
  6. Step 6: Final answer
    x = 5,524.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.