Home / 9,156.25-12,635.55-5,177.36

Finding the Fourth Proportional to 9,156.25, 12,635.55 and 5,177.36

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Solution

The fourth proportional to 9,156.25, 12,635.55 and 5,177.36 is: 7,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.25 : 12,635.55 = 5,177.36 : x
  2. Step 2: Convert to fraction form
    9,156.25/12,635.55 = 5,177.36/x
  3. Step 3: Cross multiply
    9,156.25x = 12,635.55 × 5,177.36
  4. Step 4: Simplify right side
    9,156.25x = 65,418,727.97
  5. Step 5: Solve for x
    x = 65,418,727.97/9,156.25
  6. Step 6: Final answer
    x = 7,144.71

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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.