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Finding the Fourth Proportional to 10,141.74, 15,125.87 and 9,789.03

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Solution

The fourth proportional to 10,141.74, 15,125.87 and 9,789.03 is: 14,599.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,141.74 : 15,125.87 = 9,789.03 : x
  2. Step 2: Convert to fraction form
    10,141.74/15,125.87 = 9,789.03/x
  3. Step 3: Cross multiply
    10,141.74x = 15,125.87 × 9,789.03
  4. Step 4: Simplify right side
    10,141.74x = 148,067,619.68
  5. Step 5: Solve for x
    x = 148,067,619.68/10,141.74
  6. Step 6: Final answer
    x = 14,599.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.