Home / 9,370.62-12,932.40-5,391.90

Finding the Fourth Proportional to 9,370.62, 12,932.40 and 5,391.90

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Solution

The fourth proportional to 9,370.62, 12,932.40 and 5,391.90 is: 7,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,370.62 : 12,932.40 = 5,391.90 : x
  2. Step 2: Convert to fraction form
    9,370.62/12,932.40 = 5,391.90/x
  3. Step 3: Cross multiply
    9,370.62x = 12,932.40 × 5,391.90
  4. Step 4: Simplify right side
    9,370.62x = 69,730,207.56
  5. Step 5: Solve for x
    x = 69,730,207.56/9,370.62
  6. Step 6: Final answer
    x = 7,441.37

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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.