Home / 12,498.30-18,734.49-4,172.04

Finding the Fourth Proportional to 12,498.30, 18,734.49 and 4,172.04

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Solution

The fourth proportional to 12,498.30, 18,734.49 and 4,172.04 is: 6,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,498.30 : 18,734.49 = 4,172.04 : x
  2. Step 2: Convert to fraction form
    12,498.30/18,734.49 = 4,172.04/x
  3. Step 3: Cross multiply
    12,498.30x = 18,734.49 × 4,172.04
  4. Step 4: Simplify right side
    12,498.30x = 78,161,041.66
  5. Step 5: Solve for x
    x = 78,161,041.66/12,498.30
  6. Step 6: Final answer
    x = 6,253.73

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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.