Home / 16,517.40-24,782.94-9,121.20

Finding the Fourth Proportional to 16,517.40, 24,782.94 and 9,121.20

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Solution

The fourth proportional to 16,517.40, 24,782.94 and 9,121.20 is: 13,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,517.40 : 24,782.94 = 9,121.20 : x
  2. Step 2: Convert to fraction form
    16,517.40/24,782.94 = 9,121.20/x
  3. Step 3: Cross multiply
    16,517.40x = 24,782.94 × 9,121.20
  4. Step 4: Simplify right side
    16,517.40x = 226,050,152.33
  5. Step 5: Solve for x
    x = 226,050,152.33/16,517.40
  6. Step 6: Final answer
    x = 13,685.58

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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.