Home / 18,340.47-27,520.08-8,734.21

Finding the Fourth Proportional to 18,340.47, 27,520.08 and 8,734.21

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Solution

The fourth proportional to 18,340.47, 27,520.08 and 8,734.21 is: 13,105.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.47 : 27,520.08 = 8,734.21 : x
  2. Step 2: Convert to fraction form
    18,340.47/27,520.08 = 8,734.21/x
  3. Step 3: Cross multiply
    18,340.47x = 27,520.08 × 8,734.21
  4. Step 4: Simplify right side
    18,340.47x = 240,366,157.94
  5. Step 5: Solve for x
    x = 240,366,157.94/18,340.47
  6. Step 6: Final answer
    x = 13,105.78

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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.