Home / 15,010.38-20,713.68-8,295.66

Finding the Fourth Proportional to 15,010.38, 20,713.68 and 8,295.66

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Solution

The fourth proportional to 15,010.38, 20,713.68 and 8,295.66 is: 11,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.38 : 20,713.68 = 8,295.66 : x
  2. Step 2: Convert to fraction form
    15,010.38/20,713.68 = 8,295.66/x
  3. Step 3: Cross multiply
    15,010.38x = 20,713.68 × 8,295.66
  4. Step 4: Simplify right side
    15,010.38x = 171,833,646.63
  5. Step 5: Solve for x
    x = 171,833,646.63/15,010.38
  6. Step 6: Final answer
    x = 11,447.65

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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.