Home / 10,517.78-15,747.91-10,238.94

Finding the Fourth Proportional to 10,517.78, 15,747.91 and 10,238.94

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Solution

The fourth proportional to 10,517.78, 15,747.91 and 10,238.94 is: 15,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.78 : 15,747.91 = 10,238.94 : x
  2. Step 2: Convert to fraction form
    10,517.78/15,747.91 = 10,238.94/x
  3. Step 3: Cross multiply
    10,517.78x = 15,747.91 × 10,238.94
  4. Step 4: Simplify right side
    10,517.78x = 161,241,880.02
  5. Step 5: Solve for x
    x = 161,241,880.02/10,517.78
  6. Step 6: Final answer
    x = 15,330.41

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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.