Home / 10,118.87-15,185.13-3,545.12

Finding the Fourth Proportional to 10,118.87, 15,185.13 and 3,545.12

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Solution

The fourth proportional to 10,118.87, 15,185.13 and 3,545.12 is: 5,320.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.87 : 15,185.13 = 3,545.12 : x
  2. Step 2: Convert to fraction form
    10,118.87/15,185.13 = 3,545.12/x
  3. Step 3: Cross multiply
    10,118.87x = 15,185.13 × 3,545.12
  4. Step 4: Simplify right side
    10,118.87x = 53,833,014.41
  5. Step 5: Solve for x
    x = 53,833,014.41/10,118.87
  6. Step 6: Final answer
    x = 5,320.06

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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.