Home / 9,155.67-12,635.33-5,177.13

Finding the Fourth Proportional to 9,155.67, 12,635.33 and 5,177.13

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Solution

The fourth proportional to 9,155.67, 12,635.33 and 5,177.13 is: 7,144.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.67 : 12,635.33 = 5,177.13 : x
  2. Step 2: Convert to fraction form
    9,155.67/12,635.33 = 5,177.13/x
  3. Step 3: Cross multiply
    9,155.67x = 12,635.33 × 5,177.13
  4. Step 4: Simplify right side
    9,155.67x = 65,414,720.12
  5. Step 5: Solve for x
    x = 65,414,720.12/9,155.67
  6. Step 6: Final answer
    x = 7,144.72

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1.5x scale

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.