Home / 10,257.12-15,387.30-3,330

Finding the Fourth Proportional to 10,257.12, 15,387.30 and 3,330

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Solution

The fourth proportional to 10,257.12, 15,387.30 and 3,330 is: 4,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.12 : 15,387.30 = 3,330 : x
  2. Step 2: Convert to fraction form
    10,257.12/15,387.30 = 3,330/x
  3. Step 3: Cross multiply
    10,257.12x = 15,387.30 × 3,330
  4. Step 4: Simplify right side
    10,257.12x = 51,239,709
  5. Step 5: Solve for x
    x = 51,239,709/10,257.12
  6. Step 6: Final answer
    x = 4,995.53

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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.