Home / 15,100.25-20,838.22-8,294.38

Finding the Fourth Proportional to 15,100.25, 20,838.22 and 8,294.38

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Solution

The fourth proportional to 15,100.25, 20,838.22 and 8,294.38 is: 11,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,100.25 : 20,838.22 = 8,294.38 : x
  2. Step 2: Convert to fraction form
    15,100.25/20,838.22 = 8,294.38/x
  3. Step 3: Cross multiply
    15,100.25x = 20,838.22 × 8,294.38
  4. Step 4: Simplify right side
    15,100.25x = 172,840,042.37
  5. Step 5: Solve for x
    x = 172,840,042.37/15,100.25
  6. Step 6: Final answer
    x = 11,446.17

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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.