Home / 12,042.20-18,064.65-3,722.15

Finding the Fourth Proportional to 12,042.20, 18,064.65 and 3,722.15

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Solution

The fourth proportional to 12,042.20, 18,064.65 and 3,722.15 is: 5,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.20 : 18,064.65 = 3,722.15 : x
  2. Step 2: Convert to fraction form
    12,042.20/18,064.65 = 3,722.15/x
  3. Step 3: Cross multiply
    12,042.20x = 18,064.65 × 3,722.15
  4. Step 4: Simplify right side
    12,042.20x = 67,239,337.00
  5. Step 5: Solve for x
    x = 67,239,337.00/12,042.20
  6. Step 6: Final answer
    x = 5,583.64

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1.5x scale

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.