Home / 14,545.20-20,081.88-11,181.81

Finding the Fourth Proportional to 14,545.20, 20,081.88 and 11,181.81

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Solution

The fourth proportional to 14,545.20, 20,081.88 and 11,181.81 is: 15,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.20 : 20,081.88 = 11,181.81 : x
  2. Step 2: Convert to fraction form
    14,545.20/20,081.88 = 11,181.81/x
  3. Step 3: Cross multiply
    14,545.20x = 20,081.88 × 11,181.81
  4. Step 4: Simplify right side
    14,545.20x = 224,551,766.60
  5. Step 5: Solve for x
    x = 224,551,766.60/14,545.20
  6. Step 6: Final answer
    x = 15,438.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.