Home / 15,250.74-21,044.25-8,536.74

Finding the Fourth Proportional to 15,250.74, 21,044.25 and 8,536.74

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Solution

The fourth proportional to 15,250.74, 21,044.25 and 8,536.74 is: 11,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,250.74 : 21,044.25 = 8,536.74 : x
  2. Step 2: Convert to fraction form
    15,250.74/21,044.25 = 8,536.74/x
  3. Step 3: Cross multiply
    15,250.74x = 21,044.25 × 8,536.74
  4. Step 4: Simplify right side
    15,250.74x = 179,649,290.75
  5. Step 5: Solve for x
    x = 179,649,290.75/15,250.74
  6. Step 6: Final answer
    x = 11,779.71

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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.