Home / 15,949.96-22,010.01-8,778.66

Finding the Fourth Proportional to 15,949.96, 22,010.01 and 8,778.66

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Solution

The fourth proportional to 15,949.96, 22,010.01 and 8,778.66 is: 12,114.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,949.96 : 22,010.01 = 8,778.66 : x
  2. Step 2: Convert to fraction form
    15,949.96/22,010.01 = 8,778.66/x
  3. Step 3: Cross multiply
    15,949.96x = 22,010.01 × 8,778.66
  4. Step 4: Simplify right side
    15,949.96x = 193,218,278.93
  5. Step 5: Solve for x
    x = 193,218,278.93/15,949.96
  6. Step 6: Final answer
    x = 12,114.03

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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.