Home / 15,909.20-23,863.80-11,219.30

Finding the Fourth Proportional to 15,909.20, 23,863.80 and 11,219.30

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Solution

The fourth proportional to 15,909.20, 23,863.80 and 11,219.30 is: 16,828.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,909.20 : 23,863.80 = 11,219.30 : x
  2. Step 2: Convert to fraction form
    15,909.20/23,863.80 = 11,219.30/x
  3. Step 3: Cross multiply
    15,909.20x = 23,863.80 × 11,219.30
  4. Step 4: Simplify right side
    15,909.20x = 267,735,131.34
  5. Step 5: Solve for x
    x = 267,735,131.34/15,909.20
  6. Step 6: Final answer
    x = 16,828.95

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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.