Home / 15,044.43-20,761.31-8,330.05

Finding the Fourth Proportional to 15,044.43, 20,761.31 and 8,330.05

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Solution

The fourth proportional to 15,044.43, 20,761.31 and 8,330.05 is: 11,495.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.43 : 20,761.31 = 8,330.05 : x
  2. Step 2: Convert to fraction form
    15,044.43/20,761.31 = 8,330.05/x
  3. Step 3: Cross multiply
    15,044.43x = 20,761.31 × 8,330.05
  4. Step 4: Simplify right side
    15,044.43x = 172,942,786.80
  5. Step 5: Solve for x
    x = 172,942,786.80/15,044.43
  6. Step 6: Final answer
    x = 11,495.47

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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.