Home / 10,181.28-15,274.10-3,161.14

Finding the Fourth Proportional to 10,181.28, 15,274.10 and 3,161.14

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Solution

The fourth proportional to 10,181.28, 15,274.10 and 3,161.14 is: 4,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181.28 : 15,274.10 = 3,161.14 : x
  2. Step 2: Convert to fraction form
    10,181.28/15,274.10 = 3,161.14/x
  3. Step 3: Cross multiply
    10,181.28x = 15,274.10 × 3,161.14
  4. Step 4: Simplify right side
    10,181.28x = 48,283,568.47
  5. Step 5: Solve for x
    x = 48,283,568.47/10,181.28
  6. Step 6: Final answer
    x = 4,742.39

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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.