Home / 10,108.92-15,158.10-3,181.56

Finding the Fourth Proportional to 10,108.92, 15,158.10 and 3,181.56

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Solution

The fourth proportional to 10,108.92, 15,158.10 and 3,181.56 is: 4,770.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.92 : 15,158.10 = 3,181.56 : x
  2. Step 2: Convert to fraction form
    10,108.92/15,158.10 = 3,181.56/x
  3. Step 3: Cross multiply
    10,108.92x = 15,158.10 × 3,181.56
  4. Step 4: Simplify right side
    10,108.92x = 48,226,404.64
  5. Step 5: Solve for x
    x = 48,226,404.64/10,108.92
  6. Step 6: Final answer
    x = 4,770.68

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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.