Home / 10,642.28-15,965.10-3,245.04

Finding the Fourth Proportional to 10,642.28, 15,965.10 and 3,245.04

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Solution

The fourth proportional to 10,642.28, 15,965.10 and 3,245.04 is: 4,868.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.28 : 15,965.10 = 3,245.04 : x
  2. Step 2: Convert to fraction form
    10,642.28/15,965.10 = 3,245.04/x
  3. Step 3: Cross multiply
    10,642.28x = 15,965.10 × 3,245.04
  4. Step 4: Simplify right side
    10,642.28x = 51,807,388.10
  5. Step 5: Solve for x
    x = 51,807,388.10/10,642.28
  6. Step 6: Final answer
    x = 4,868.07

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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.