Home / 12,278.67-18,414.63-4,781.04

Finding the Fourth Proportional to 12,278.67, 18,414.63 and 4,781.04

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Solution

The fourth proportional to 12,278.67, 18,414.63 and 4,781.04 is: 7,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.67 : 18,414.63 = 4,781.04 : x
  2. Step 2: Convert to fraction form
    12,278.67/18,414.63 = 4,781.04/x
  3. Step 3: Cross multiply
    12,278.67x = 18,414.63 × 4,781.04
  4. Step 4: Simplify right side
    12,278.67x = 88,041,082.62
  5. Step 5: Solve for x
    x = 88,041,082.62/12,278.67
  6. Step 6: Final answer
    x = 7,170.25

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1.5x scale

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.