Home / 15,044.36-20,761.30-8,330.20

Finding the Fourth Proportional to 15,044.36, 20,761.30 and 8,330.20

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Solution

The fourth proportional to 15,044.36, 20,761.30 and 8,330.20 is: 11,495.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.36 : 20,761.30 = 8,330.20 : x
  2. Step 2: Convert to fraction form
    15,044.36/20,761.30 = 8,330.20/x
  3. Step 3: Cross multiply
    15,044.36x = 20,761.30 × 8,330.20
  4. Step 4: Simplify right side
    15,044.36x = 172,945,781.26
  5. Step 5: Solve for x
    x = 172,945,781.26/15,044.36
  6. Step 6: Final answer
    x = 11,495.72

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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.