Home / 7,966.62-11,947.91-5,648.40

Finding the Fourth Proportional to 7,966.62, 11,947.91 and 5,648.40

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Solution

The fourth proportional to 7,966.62, 11,947.91 and 5,648.40 is: 8,471.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.62 : 11,947.91 = 5,648.40 : x
  2. Step 2: Convert to fraction form
    7,966.62/11,947.91 = 5,648.40/x
  3. Step 3: Cross multiply
    7,966.62x = 11,947.91 × 5,648.40
  4. Step 4: Simplify right side
    7,966.62x = 67,486,546.60
  5. Step 5: Solve for x
    x = 67,486,546.60/7,966.62
  6. Step 6: Final answer
    x = 8,471.16

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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.