Home / 15,113.91-20,851.38-11,144.46

Finding the Fourth Proportional to 15,113.91, 20,851.38 and 11,144.46

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Solution

The fourth proportional to 15,113.91, 20,851.38 and 11,144.46 is: 15,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.91 : 20,851.38 = 11,144.46 : x
  2. Step 2: Convert to fraction form
    15,113.91/20,851.38 = 11,144.46/x
  3. Step 3: Cross multiply
    15,113.91x = 20,851.38 × 11,144.46
  4. Step 4: Simplify right side
    15,113.91x = 232,377,370.35
  5. Step 5: Solve for x
    x = 232,377,370.35/15,113.91
  6. Step 6: Final answer
    x = 15,375.07

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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.