Home / 10,487.70-15,731.63-3,828.97

Finding the Fourth Proportional to 10,487.70, 15,731.63 and 3,828.97

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Solution

The fourth proportional to 10,487.70, 15,731.63 and 3,828.97 is: 5,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.70 : 15,731.63 = 3,828.97 : x
  2. Step 2: Convert to fraction form
    10,487.70/15,731.63 = 3,828.97/x
  3. Step 3: Cross multiply
    10,487.70x = 15,731.63 × 3,828.97
  4. Step 4: Simplify right side
    10,487.70x = 60,235,939.32
  5. Step 5: Solve for x
    x = 60,235,939.32/10,487.70
  6. Step 6: Final answer
    x = 5,743.48

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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.