Home / 15,764.07-21,755.34-9,049.71

Finding the Fourth Proportional to 15,764.07, 21,755.34 and 9,049.71

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Solution

The fourth proportional to 15,764.07, 21,755.34 and 9,049.71 is: 12,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,764.07 : 21,755.34 = 9,049.71 : x
  2. Step 2: Convert to fraction form
    15,764.07/21,755.34 = 9,049.71/x
  3. Step 3: Cross multiply
    15,764.07x = 21,755.34 × 9,049.71
  4. Step 4: Simplify right side
    15,764.07x = 196,879,517.95
  5. Step 5: Solve for x
    x = 196,879,517.95/15,764.07
  6. Step 6: Final answer
    x = 12,489.13

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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.