Home / 12,042.32-18,067.13-8,539.10

Finding the Fourth Proportional to 12,042.32, 18,067.13 and 8,539.10

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Solution

The fourth proportional to 12,042.32, 18,067.13 and 8,539.10 is: 12,811.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.32 : 18,067.13 = 8,539.10 : x
  2. Step 2: Convert to fraction form
    12,042.32/18,067.13 = 8,539.10/x
  3. Step 3: Cross multiply
    12,042.32x = 18,067.13 × 8,539.10
  4. Step 4: Simplify right side
    12,042.32x = 154,276,921.70
  5. Step 5: Solve for x
    x = 154,276,921.70/12,042.32
  6. Step 6: Final answer
    x = 12,811.23

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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.