Home / 11,947.46-17,921.42-4,348.47

Finding the Fourth Proportional to 11,947.46, 17,921.42 and 4,348.47

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Solution

The fourth proportional to 11,947.46, 17,921.42 and 4,348.47 is: 6,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.46 : 17,921.42 = 4,348.47 : x
  2. Step 2: Convert to fraction form
    11,947.46/17,921.42 = 4,348.47/x
  3. Step 3: Cross multiply
    11,947.46x = 17,921.42 × 4,348.47
  4. Step 4: Simplify right side
    11,947.46x = 77,930,735.49
  5. Step 5: Solve for x
    x = 77,930,735.49/11,947.46
  6. Step 6: Final answer
    x = 6,522.79

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1.5x scale

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.