Home / 15,229.98-21,012.63-8,514.66

Finding the Fourth Proportional to 15,229.98, 21,012.63 and 8,514.66

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Solution

The fourth proportional to 15,229.98, 21,012.63 and 8,514.66 is: 11,747.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,229.98 : 21,012.63 = 8,514.66 : x
  2. Step 2: Convert to fraction form
    15,229.98/21,012.63 = 8,514.66/x
  3. Step 3: Cross multiply
    15,229.98x = 21,012.63 × 8,514.66
  4. Step 4: Simplify right side
    15,229.98x = 178,915,400.16
  5. Step 5: Solve for x
    x = 178,915,400.16/15,229.98
  6. Step 6: Final answer
    x = 11,747.58

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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.