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Finding the Fourth Proportional to 9,370.88, 12,932.39 and 5,391.91

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Solution

The fourth proportional to 9,370.88, 12,932.39 and 5,391.91 is: 7,441.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,370.88 : 12,932.39 = 5,391.91 : x
  2. Step 2: Convert to fraction form
    9,370.88/12,932.39 = 5,391.91/x
  3. Step 3: Cross multiply
    9,370.88x = 12,932.39 × 5,391.91
  4. Step 4: Simplify right side
    9,370.88x = 69,730,223.67
  5. Step 5: Solve for x
    x = 69,730,223.67/9,370.88
  6. Step 6: Final answer
    x = 7,441.16

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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.