Home / 11,179.52-15,447.20-9,188.56

Finding the Fourth Proportional to 11,179.52, 15,447.20 and 9,188.56

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Solution

The fourth proportional to 11,179.52, 15,447.20 and 9,188.56 is: 12,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.52 : 15,447.20 = 9,188.56 : x
  2. Step 2: Convert to fraction form
    11,179.52/15,447.20 = 9,188.56/x
  3. Step 3: Cross multiply
    11,179.52x = 15,447.20 × 9,188.56
  4. Step 4: Simplify right side
    11,179.52x = 141,937,524.03
  5. Step 5: Solve for x
    x = 141,937,524.03/11,179.52
  6. Step 6: Final answer
    x = 12,696.21

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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.