Home / 12,042.79-18,065.90-3,723.45

Finding the Fourth Proportional to 12,042.79, 18,065.90 and 3,723.45

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Solution

The fourth proportional to 12,042.79, 18,065.90 and 3,723.45 is: 5,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.79 : 18,065.90 = 3,723.45 : x
  2. Step 2: Convert to fraction form
    12,042.79/18,065.90 = 3,723.45/x
  3. Step 3: Cross multiply
    12,042.79x = 18,065.90 × 3,723.45
  4. Step 4: Simplify right side
    12,042.79x = 67,267,385.03
  5. Step 5: Solve for x
    x = 67,267,385.03/12,042.79
  6. Step 6: Final answer
    x = 5,585.70

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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.