Home / 15,010.31-20,716.80-8,726.33

Finding the Fourth Proportional to 15,010.31, 20,716.80 and 8,726.33

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Solution

The fourth proportional to 15,010.31, 20,716.80 and 8,726.33 is: 12,043.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.31 : 20,716.80 = 8,726.33 : x
  2. Step 2: Convert to fraction form
    15,010.31/20,716.80 = 8,726.33/x
  3. Step 3: Cross multiply
    15,010.31x = 20,716.80 × 8,726.33
  4. Step 4: Simplify right side
    15,010.31x = 180,781,633.34
  5. Step 5: Solve for x
    x = 180,781,633.34/15,010.31
  6. Step 6: Final answer
    x = 12,043.83

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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.