Home / 10,167.28-15,245.30-3,145.36

Finding the Fourth Proportional to 10,167.28, 15,245.30 and 3,145.36

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Solution

The fourth proportional to 10,167.28, 15,245.30 and 3,145.36 is: 4,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,167.28 : 15,245.30 = 3,145.36 : x
  2. Step 2: Convert to fraction form
    10,167.28/15,245.30 = 3,145.36/x
  3. Step 3: Cross multiply
    10,167.28x = 15,245.30 × 3,145.36
  4. Step 4: Simplify right side
    10,167.28x = 47,951,956.81
  5. Step 5: Solve for x
    x = 47,951,956.81/10,167.28
  6. Step 6: Final answer
    x = 4,716.30

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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.