Home / 12,168.24-16,787.16-7,450.80

Finding the Fourth Proportional to 12,168.24, 16,787.16 and 7,450.80

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Solution

The fourth proportional to 12,168.24, 16,787.16 and 7,450.80 is: 10,279.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.24 : 16,787.16 = 7,450.80 : x
  2. Step 2: Convert to fraction form
    12,168.24/16,787.16 = 7,450.80/x
  3. Step 3: Cross multiply
    12,168.24x = 16,787.16 × 7,450.80
  4. Step 4: Simplify right side
    12,168.24x = 125,077,771.73
  5. Step 5: Solve for x
    x = 125,077,771.73/12,168.24
  6. Step 6: Final answer
    x = 10,279.04

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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.