Home / 15,084.06-20,815.27-8,369.61

Finding the Fourth Proportional to 15,084.06, 20,815.27 and 8,369.61

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Solution

The fourth proportional to 15,084.06, 20,815.27 and 8,369.61 is: 11,549.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,084.06 : 20,815.27 = 8,369.61 : x
  2. Step 2: Convert to fraction form
    15,084.06/20,815.27 = 8,369.61/x
  3. Step 3: Cross multiply
    15,084.06x = 20,815.27 × 8,369.61
  4. Step 4: Simplify right side
    15,084.06x = 174,215,691.94
  5. Step 5: Solve for x
    x = 174,215,691.94/15,084.06
  6. Step 6: Final answer
    x = 11,549.66

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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.