Home / 12,229.16-18,327.18-8,758.76

Finding the Fourth Proportional to 12,229.16, 18,327.18 and 8,758.76

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Solution

The fourth proportional to 12,229.16, 18,327.18 and 8,758.76 is: 13,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.16 : 18,327.18 = 8,758.76 : x
  2. Step 2: Convert to fraction form
    12,229.16/18,327.18 = 8,758.76/x
  3. Step 3: Cross multiply
    12,229.16x = 18,327.18 × 8,758.76
  4. Step 4: Simplify right side
    12,229.16x = 160,523,371.10
  5. Step 5: Solve for x
    x = 160,523,371.10/12,229.16
  6. Step 6: Final answer
    x = 13,126.28

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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.