Home / 8,191.36-11,304.31-5,005.18

Finding the Fourth Proportional to 8,191.36, 11,304.31 and 5,005.18

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Solution

The fourth proportional to 8,191.36, 11,304.31 and 5,005.18 is: 6,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.36 : 11,304.31 = 5,005.18 : x
  2. Step 2: Convert to fraction form
    8,191.36/11,304.31 = 5,005.18/x
  3. Step 3: Cross multiply
    8,191.36x = 11,304.31 × 5,005.18
  4. Step 4: Simplify right side
    8,191.36x = 56,580,049.80
  5. Step 5: Solve for x
    x = 56,580,049.80/8,191.36
  6. Step 6: Final answer
    x = 6,907.29

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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.