Home / 13,519.92-20,280-4,754.90

Finding the Fourth Proportional to 13,519.92, 20,280 and 4,754.90

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Solution

The fourth proportional to 13,519.92, 20,280 and 4,754.90 is: 7,132.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.92 : 20,280 = 4,754.90 : x
  2. Step 2: Convert to fraction form
    13,519.92/20,280 = 4,754.90/x
  3. Step 3: Cross multiply
    13,519.92x = 20,280 × 4,754.90
  4. Step 4: Simplify right side
    13,519.92x = 96,429,372
  5. Step 5: Solve for x
    x = 96,429,372/13,519.92
  6. Step 6: Final answer
    x = 7,132.39

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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.