Home / 26,258.28-39,387.42-7,791.72

Finding the Fourth Proportional to 26,258.28, 39,387.42 and 7,791.72

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Solution

The fourth proportional to 26,258.28, 39,387.42 and 7,791.72 is: 11,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,258.28 : 39,387.42 = 7,791.72 : x
  2. Step 2: Convert to fraction form
    26,258.28/39,387.42 = 7,791.72/x
  3. Step 3: Cross multiply
    26,258.28x = 39,387.42 × 7,791.72
  4. Step 4: Simplify right side
    26,258.28x = 306,895,748.16
  5. Step 5: Solve for x
    x = 306,895,748.16/26,258.28
  6. Step 6: Final answer
    x = 11,687.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.