Home / 12,230.80-16,872.71-8,253.19

Finding the Fourth Proportional to 12,230.80, 16,872.71 and 8,253.19

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Solution

The fourth proportional to 12,230.80, 16,872.71 and 8,253.19 is: 11,385.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.80 : 16,872.71 = 8,253.19 : x
  2. Step 2: Convert to fraction form
    12,230.80/16,872.71 = 8,253.19/x
  3. Step 3: Cross multiply
    12,230.80x = 16,872.71 × 8,253.19
  4. Step 4: Simplify right side
    12,230.80x = 139,253,661.27
  5. Step 5: Solve for x
    x = 139,253,661.27/12,230.80
  6. Step 6: Final answer
    x = 11,385.49

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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.