Home / 10,119.61-15,186.24-3,545.85

Finding the Fourth Proportional to 10,119.61, 15,186.24 and 3,545.85

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Solution

The fourth proportional to 10,119.61, 15,186.24 and 3,545.85 is: 5,321.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.61 : 15,186.24 = 3,545.85 : x
  2. Step 2: Convert to fraction form
    10,119.61/15,186.24 = 3,545.85/x
  3. Step 3: Cross multiply
    10,119.61x = 15,186.24 × 3,545.85
  4. Step 4: Simplify right side
    10,119.61x = 53,848,129.10
  5. Step 5: Solve for x
    x = 53,848,129.10/10,119.61
  6. Step 6: Final answer
    x = 5,321.17

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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.