Home / 16,065.11-22,169.85-8,991.53

Finding the Fourth Proportional to 16,065.11, 22,169.85 and 8,991.53

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Solution

The fourth proportional to 16,065.11, 22,169.85 and 8,991.53 is: 12,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,065.11 : 22,169.85 = 8,991.53 : x
  2. Step 2: Convert to fraction form
    16,065.11/22,169.85 = 8,991.53/x
  3. Step 3: Cross multiply
    16,065.11x = 22,169.85 × 8,991.53
  4. Step 4: Simplify right side
    16,065.11x = 199,340,826.41
  5. Step 5: Solve for x
    x = 199,340,826.41/16,065.11
  6. Step 6: Final answer
    x = 12,408.31

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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.