Home / 13,766.80-18,955.02-12,150.04

Finding the Fourth Proportional to 13,766.80, 18,955.02 and 12,150.04

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Solution

The fourth proportional to 13,766.80, 18,955.02 and 12,150.04 is: 16,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766.80 : 18,955.02 = 12,150.04 : x
  2. Step 2: Convert to fraction form
    13,766.80/18,955.02 = 12,150.04/x
  3. Step 3: Cross multiply
    13,766.80x = 18,955.02 × 12,150.04
  4. Step 4: Simplify right side
    13,766.80x = 230,304,251.20
  5. Step 5: Solve for x
    x = 230,304,251.20/13,766.80
  6. Step 6: Final answer
    x = 16,728.96

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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.