Home / 10,488.72-15,732.96-4,247.04

Finding the Fourth Proportional to 10,488.72, 15,732.96 and 4,247.04

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Solution

The fourth proportional to 10,488.72, 15,732.96 and 4,247.04 is: 6,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.72 : 15,732.96 = 4,247.04 : x
  2. Step 2: Convert to fraction form
    10,488.72/15,732.96 = 4,247.04/x
  3. Step 3: Cross multiply
    10,488.72x = 15,732.96 × 4,247.04
  4. Step 4: Simplify right side
    10,488.72x = 66,818,510.44
  5. Step 5: Solve for x
    x = 66,818,510.44/10,488.72
  6. Step 6: Final answer
    x = 6,370.51

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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.