Home / 12,499.24-18,744.30-3,731.20

Finding the Fourth Proportional to 12,499.24, 18,744.30 and 3,731.20

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Solution

The fourth proportional to 12,499.24, 18,744.30 and 3,731.20 is: 5,595.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,499.24 : 18,744.30 = 3,731.20 : x
  2. Step 2: Convert to fraction form
    12,499.24/18,744.30 = 3,731.20/x
  3. Step 3: Cross multiply
    12,499.24x = 18,744.30 × 3,731.20
  4. Step 4: Simplify right side
    12,499.24x = 69,938,732.16
  5. Step 5: Solve for x
    x = 69,938,732.16/12,499.24
  6. Step 6: Final answer
    x = 5,595.44

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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.