Home / 7,979.90-11,963.88-5,507.66

Finding the Fourth Proportional to 7,979.90, 11,963.88 and 5,507.66

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Solution

The fourth proportional to 7,979.90, 11,963.88 and 5,507.66 is: 8,257.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.90 : 11,963.88 = 5,507.66 : x
  2. Step 2: Convert to fraction form
    7,979.90/11,963.88 = 5,507.66/x
  3. Step 3: Cross multiply
    7,979.90x = 11,963.88 × 5,507.66
  4. Step 4: Simplify right side
    7,979.90x = 65,892,983.32
  5. Step 5: Solve for x
    x = 65,892,983.32/7,979.90
  6. Step 6: Final answer
    x = 8,257.37

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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.