Home / 12,224.17-18,341.45-8,279.87

Finding the Fourth Proportional to 12,224.17, 18,341.45 and 8,279.87

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Solution

The fourth proportional to 12,224.17, 18,341.45 and 8,279.87 is: 12,423.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.17 : 18,341.45 = 8,279.87 : x
  2. Step 2: Convert to fraction form
    12,224.17/18,341.45 = 8,279.87/x
  3. Step 3: Cross multiply
    12,224.17x = 18,341.45 × 8,279.87
  4. Step 4: Simplify right side
    12,224.17x = 151,864,821.61
  5. Step 5: Solve for x
    x = 151,864,821.61/12,224.17
  6. Step 6: Final answer
    x = 12,423.32

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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.