Home / 9,391.76-12,961.02-5,200

Finding the Fourth Proportional to 9,391.76, 12,961.02 and 5,200

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Solution

The fourth proportional to 9,391.76, 12,961.02 and 5,200 is: 7,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391.76 : 12,961.02 = 5,200 : x
  2. Step 2: Convert to fraction form
    9,391.76/12,961.02 = 5,200/x
  3. Step 3: Cross multiply
    9,391.76x = 12,961.02 × 5,200
  4. Step 4: Simplify right side
    9,391.76x = 67,397,304
  5. Step 5: Solve for x
    x = 67,397,304/9,391.76
  6. Step 6: Final answer
    x = 7,176.22

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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.