Home / 15,326.82-21,150.18-8,613.54

Finding the Fourth Proportional to 15,326.82, 21,150.18 and 8,613.54

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Solution

The fourth proportional to 15,326.82, 21,150.18 and 8,613.54 is: 11,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.82 : 21,150.18 = 8,613.54 : x
  2. Step 2: Convert to fraction form
    15,326.82/21,150.18 = 8,613.54/x
  3. Step 3: Cross multiply
    15,326.82x = 21,150.18 × 8,613.54
  4. Step 4: Simplify right side
    15,326.82x = 182,177,921.44
  5. Step 5: Solve for x
    x = 182,177,921.44/15,326.82
  6. Step 6: Final answer
    x = 11,886.22

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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.