Home / 12,229.24-18,340.02-5,209.20

Finding the Fourth Proportional to 12,229.24, 18,340.02 and 5,209.20

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Solution

The fourth proportional to 12,229.24, 18,340.02 and 5,209.20 is: 7,812.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.24 : 18,340.02 = 5,209.20 : x
  2. Step 2: Convert to fraction form
    12,229.24/18,340.02 = 5,209.20/x
  3. Step 3: Cross multiply
    12,229.24x = 18,340.02 × 5,209.20
  4. Step 4: Simplify right side
    12,229.24x = 95,536,832.18
  5. Step 5: Solve for x
    x = 95,536,832.18/12,229.24
  6. Step 6: Final answer
    x = 7,812.16

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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.