Home / 15,517.01-21,416.18-8,801.30

Finding the Fourth Proportional to 15,517.01, 21,416.18 and 8,801.30

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Solution

The fourth proportional to 15,517.01, 21,416.18 and 8,801.30 is: 12,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.01 : 21,416.18 = 8,801.30 : x
  2. Step 2: Convert to fraction form
    15,517.01/21,416.18 = 8,801.30/x
  3. Step 3: Cross multiply
    15,517.01x = 21,416.18 × 8,801.30
  4. Step 4: Simplify right side
    15,517.01x = 188,490,234.57
  5. Step 5: Solve for x
    x = 188,490,234.57/15,517.01
  6. Step 6: Final answer
    x = 12,147.33

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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.