Home / 10,143.20-15,207.62-3,476.49

Finding the Fourth Proportional to 10,143.20, 15,207.62 and 3,476.49

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Solution

The fourth proportional to 10,143.20, 15,207.62 and 3,476.49 is: 5,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.20 : 15,207.62 = 3,476.49 : x
  2. Step 2: Convert to fraction form
    10,143.20/15,207.62 = 3,476.49/x
  3. Step 3: Cross multiply
    10,143.20x = 15,207.62 × 3,476.49
  4. Step 4: Simplify right side
    10,143.20x = 52,869,222.09
  5. Step 5: Solve for x
    x = 52,869,222.09/10,143.20
  6. Step 6: Final answer
    x = 5,212.28

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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.