Home / 12,343.80-18,520.02-3,579.24

Finding the Fourth Proportional to 12,343.80, 18,520.02 and 3,579.24

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Solution

The fourth proportional to 12,343.80, 18,520.02 and 3,579.24 is: 5,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.80 : 18,520.02 = 3,579.24 : x
  2. Step 2: Convert to fraction form
    12,343.80/18,520.02 = 3,579.24/x
  3. Step 3: Cross multiply
    12,343.80x = 18,520.02 × 3,579.24
  4. Step 4: Simplify right side
    12,343.80x = 66,287,596.38
  5. Step 5: Solve for x
    x = 66,287,596.38/12,343.80
  6. Step 6: Final answer
    x = 5,370.11

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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.