Home / 13,177.20-18,184.96-7,209.04

Finding the Fourth Proportional to 13,177.20, 18,184.96 and 7,209.04

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Solution

The fourth proportional to 13,177.20, 18,184.96 and 7,209.04 is: 9,948.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.20 : 18,184.96 = 7,209.04 : x
  2. Step 2: Convert to fraction form
    13,177.20/18,184.96 = 7,209.04/x
  3. Step 3: Cross multiply
    13,177.20x = 18,184.96 × 7,209.04
  4. Step 4: Simplify right side
    13,177.20x = 131,096,104.04
  5. Step 5: Solve for x
    x = 131,096,104.04/13,177.20
  6. Step 6: Final answer
    x = 9,948.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.