Home / 16,045.09-22,142.16-8,971.56

Finding the Fourth Proportional to 16,045.09, 22,142.16 and 8,971.56

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Solution

The fourth proportional to 16,045.09, 22,142.16 and 8,971.56 is: 12,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,045.09 : 22,142.16 = 8,971.56 : x
  2. Step 2: Convert to fraction form
    16,045.09/22,142.16 = 8,971.56/x
  3. Step 3: Cross multiply
    16,045.09x = 22,142.16 × 8,971.56
  4. Step 4: Simplify right side
    16,045.09x = 198,649,716.97
  5. Step 5: Solve for x
    x = 198,649,716.97/16,045.09
  6. Step 6: Final answer
    x = 12,380.72

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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.