Home / 10,949.52-15,108.68-6,168.78

Finding the Fourth Proportional to 10,949.52, 15,108.68 and 6,168.78

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Solution

The fourth proportional to 10,949.52, 15,108.68 and 6,168.78 is: 8,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.52 : 15,108.68 = 6,168.78 : x
  2. Step 2: Convert to fraction form
    10,949.52/15,108.68 = 6,168.78/x
  3. Step 3: Cross multiply
    10,949.52x = 15,108.68 × 6,168.78
  4. Step 4: Simplify right side
    10,949.52x = 93,202,123.01
  5. Step 5: Solve for x
    x = 93,202,123.01/10,949.52
  6. Step 6: Final answer
    x = 8,511.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.