Home / 10,479.65-15,721.42-3,460.15

Finding the Fourth Proportional to 10,479.65, 15,721.42 and 3,460.15

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Solution

The fourth proportional to 10,479.65, 15,721.42 and 3,460.15 is: 5,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.65 : 15,721.42 = 3,460.15 : x
  2. Step 2: Convert to fraction form
    10,479.65/15,721.42 = 3,460.15/x
  3. Step 3: Cross multiply
    10,479.65x = 15,721.42 × 3,460.15
  4. Step 4: Simplify right side
    10,479.65x = 54,398,493.42
  5. Step 5: Solve for x
    x = 54,398,493.42/10,479.65
  6. Step 6: Final answer
    x = 5,190.87

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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.