Home / 10,065.82-15,091.84-5,125.90

Finding the Fourth Proportional to 10,065.82, 15,091.84 and 5,125.90

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Solution

The fourth proportional to 10,065.82, 15,091.84 and 5,125.90 is: 7,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,065.82 : 15,091.84 = 5,125.90 : x
  2. Step 2: Convert to fraction form
    10,065.82/15,091.84 = 5,125.90/x
  3. Step 3: Cross multiply
    10,065.82x = 15,091.84 × 5,125.90
  4. Step 4: Simplify right side
    10,065.82x = 77,359,262.66
  5. Step 5: Solve for x
    x = 77,359,262.66/10,065.82
  6. Step 6: Final answer
    x = 7,685.34

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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.