Home / 15,232.20-21,020.90-8,517.64

Finding the Fourth Proportional to 15,232.20, 21,020.90 and 8,517.64

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Solution

The fourth proportional to 15,232.20, 21,020.90 and 8,517.64 is: 11,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,232.20 : 21,020.90 = 8,517.64 : x
  2. Step 2: Convert to fraction form
    15,232.20/21,020.90 = 8,517.64/x
  3. Step 3: Cross multiply
    15,232.20x = 21,020.90 × 8,517.64
  4. Step 4: Simplify right side
    15,232.20x = 179,048,458.68
  5. Step 5: Solve for x
    x = 179,048,458.68/15,232.20
  6. Step 6: Final answer
    x = 11,754.60

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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.