Home / 15,083.06-20,800.98-9,418.33

Finding the Fourth Proportional to 15,083.06, 20,800.98 and 9,418.33

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Solution

The fourth proportional to 15,083.06, 20,800.98 and 9,418.33 is: 12,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083.06 : 20,800.98 = 9,418.33 : x
  2. Step 2: Convert to fraction form
    15,083.06/20,800.98 = 9,418.33/x
  3. Step 3: Cross multiply
    15,083.06x = 20,800.98 × 9,418.33
  4. Step 4: Simplify right side
    15,083.06x = 195,910,493.96
  5. Step 5: Solve for x
    x = 195,910,493.96/15,083.06
  6. Step 6: Final answer
    x = 12,988.78

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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.