Home / 15,192.80-20,967.24-8,388.15

Finding the Fourth Proportional to 15,192.80, 20,967.24 and 8,388.15

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Solution

The fourth proportional to 15,192.80, 20,967.24 and 8,388.15 is: 11,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192.80 : 20,967.24 = 8,388.15 : x
  2. Step 2: Convert to fraction form
    15,192.80/20,967.24 = 8,388.15/x
  3. Step 3: Cross multiply
    15,192.80x = 20,967.24 × 8,388.15
  4. Step 4: Simplify right side
    15,192.80x = 175,876,354.21
  5. Step 5: Solve for x
    x = 175,876,354.21/15,192.80
  6. Step 6: Final answer
    x = 11,576.30

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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.