Home / 10,152.78-15,231.57-3,227.28

Finding the Fourth Proportional to 10,152.78, 15,231.57 and 3,227.28

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Solution

The fourth proportional to 10,152.78, 15,231.57 and 3,227.28 is: 4,841.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152.78 : 15,231.57 = 3,227.28 : x
  2. Step 2: Convert to fraction form
    10,152.78/15,231.57 = 3,227.28/x
  3. Step 3: Cross multiply
    10,152.78x = 15,231.57 × 3,227.28
  4. Step 4: Simplify right side
    10,152.78x = 49,156,541.23
  5. Step 5: Solve for x
    x = 49,156,541.23/10,152.78
  6. Step 6: Final answer
    x = 4,841.68

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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.