Home / 13,177.76-18,191.99-8,951.18

Finding the Fourth Proportional to 13,177.76, 18,191.99 and 8,951.18

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Solution

The fourth proportional to 13,177.76, 18,191.99 and 8,951.18 is: 12,357.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.76 : 18,191.99 = 8,951.18 : x
  2. Step 2: Convert to fraction form
    13,177.76/18,191.99 = 8,951.18/x
  3. Step 3: Cross multiply
    13,177.76x = 18,191.99 × 8,951.18
  4. Step 4: Simplify right side
    13,177.76x = 162,839,708.47
  5. Step 5: Solve for x
    x = 162,839,708.47/13,177.76
  6. Step 6: Final answer
    x = 12,357.17

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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.