Home / 10,119.58-15,186.11-3,545.75

Finding the Fourth Proportional to 10,119.58, 15,186.11 and 3,545.75

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Solution

The fourth proportional to 10,119.58, 15,186.11 and 3,545.75 is: 5,320.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.58 : 15,186.11 = 3,545.75 : x
  2. Step 2: Convert to fraction form
    10,119.58/15,186.11 = 3,545.75/x
  3. Step 3: Cross multiply
    10,119.58x = 15,186.11 × 3,545.75
  4. Step 4: Simplify right side
    10,119.58x = 53,846,169.77
  5. Step 5: Solve for x
    x = 53,846,169.77/10,119.58
  6. Step 6: Final answer
    x = 5,320.99

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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.