Home / 15,734.57-21,713.54-8,660.84

Finding the Fourth Proportional to 15,734.57, 21,713.54 and 8,660.84

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Solution

The fourth proportional to 15,734.57, 21,713.54 and 8,660.84 is: 11,951.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,734.57 : 21,713.54 = 8,660.84 : x
  2. Step 2: Convert to fraction form
    15,734.57/21,713.54 = 8,660.84/x
  3. Step 3: Cross multiply
    15,734.57x = 21,713.54 × 8,660.84
  4. Step 4: Simplify right side
    15,734.57x = 188,057,343.90
  5. Step 5: Solve for x
    x = 188,057,343.90/15,734.57
  6. Step 6: Final answer
    x = 11,951.86

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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.