Home / 18,691.66-28,042.53-6,213.70

Finding the Fourth Proportional to 18,691.66, 28,042.53 and 6,213.70

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Solution

The fourth proportional to 18,691.66, 28,042.53 and 6,213.70 is: 9,322.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691.66 : 28,042.53 = 6,213.70 : x
  2. Step 2: Convert to fraction form
    18,691.66/28,042.53 = 6,213.70/x
  3. Step 3: Cross multiply
    18,691.66x = 28,042.53 × 6,213.70
  4. Step 4: Simplify right side
    18,691.66x = 174,247,868.66
  5. Step 5: Solve for x
    x = 174,247,868.66/18,691.66
  6. Step 6: Final answer
    x = 9,322.23

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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.