Home / 16,064.78-22,169.45-8,991.19

Finding the Fourth Proportional to 16,064.78, 22,169.45 and 8,991.19

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Solution

The fourth proportional to 16,064.78, 22,169.45 and 8,991.19 is: 12,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,064.78 : 22,169.45 = 8,991.19 : x
  2. Step 2: Convert to fraction form
    16,064.78/22,169.45 = 8,991.19/x
  3. Step 3: Cross multiply
    16,064.78x = 22,169.45 × 8,991.19
  4. Step 4: Simplify right side
    16,064.78x = 199,329,704.20
  5. Step 5: Solve for x
    x = 199,329,704.20/16,064.78
  6. Step 6: Final answer
    x = 12,407.87

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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.