Home / 15,188.52-20,960.22-8,474.55

Finding the Fourth Proportional to 15,188.52, 20,960.22 and 8,474.55

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Solution

The fourth proportional to 15,188.52, 20,960.22 and 8,474.55 is: 11,694.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.52 : 20,960.22 = 8,474.55 : x
  2. Step 2: Convert to fraction form
    15,188.52/20,960.22 = 8,474.55/x
  3. Step 3: Cross multiply
    15,188.52x = 20,960.22 × 8,474.55
  4. Step 4: Simplify right side
    15,188.52x = 177,628,432.40
  5. Step 5: Solve for x
    x = 177,628,432.40/15,188.52
  6. Step 6: Final answer
    x = 11,694.91

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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.