Home / 10,108.02-15,168.92-5,181.11

Finding the Fourth Proportional to 10,108.02, 15,168.92 and 5,181.11

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Solution

The fourth proportional to 10,108.02, 15,168.92 and 5,181.11 is: 7,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.02 : 15,168.92 = 5,181.11 : x
  2. Step 2: Convert to fraction form
    10,108.02/15,168.92 = 5,181.11/x
  3. Step 3: Cross multiply
    10,108.02x = 15,168.92 × 5,181.11
  4. Step 4: Simplify right side
    10,108.02x = 78,591,843.10
  5. Step 5: Solve for x
    x = 78,591,843.10/10,108.02
  6. Step 6: Final answer
    x = 7,775.20

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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.