Home / 13,524.80-20,306.40-8,340.80

Finding the Fourth Proportional to 13,524.80, 20,306.40 and 8,340.80

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Solution

The fourth proportional to 13,524.80, 20,306.40 and 8,340.80 is: 12,523.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.80 : 20,306.40 = 8,340.80 : x
  2. Step 2: Convert to fraction form
    13,524.80/20,306.40 = 8,340.80/x
  3. Step 3: Cross multiply
    13,524.80x = 20,306.40 × 8,340.80
  4. Step 4: Simplify right side
    13,524.80x = 169,371,621.12
  5. Step 5: Solve for x
    x = 169,371,621.12/13,524.80
  6. Step 6: Final answer
    x = 12,523.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.