Home / 13,496.78-20,255.56-8,815.52

Finding the Fourth Proportional to 13,496.78, 20,255.56 and 8,815.52

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Solution

The fourth proportional to 13,496.78, 20,255.56 and 8,815.52 is: 13,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,496.78 : 20,255.56 = 8,815.52 : x
  2. Step 2: Convert to fraction form
    13,496.78/20,255.56 = 8,815.52/x
  3. Step 3: Cross multiply
    13,496.78x = 20,255.56 × 8,815.52
  4. Step 4: Simplify right side
    13,496.78x = 178,563,294.29
  5. Step 5: Solve for x
    x = 178,563,294.29/13,496.78
  6. Step 6: Final answer
    x = 13,230.07

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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.