Home / 15,184.80-20,923.92-11,199.60

Finding the Fourth Proportional to 15,184.80, 20,923.92 and 11,199.60

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Solution

The fourth proportional to 15,184.80, 20,923.92 and 11,199.60 is: 15,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.80 : 20,923.92 = 11,199.60 : x
  2. Step 2: Convert to fraction form
    15,184.80/20,923.92 = 11,199.60/x
  3. Step 3: Cross multiply
    15,184.80x = 20,923.92 × 11,199.60
  4. Step 4: Simplify right side
    15,184.80x = 234,339,534.43
  5. Step 5: Solve for x
    x = 234,339,534.43/15,184.80
  6. Step 6: Final answer
    x = 15,432.51

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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.