Home / 7,987.98-11,981.97-6,267.54

Finding the Fourth Proportional to 7,987.98, 11,981.97 and 6,267.54

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Solution

The fourth proportional to 7,987.98, 11,981.97 and 6,267.54 is: 9,401.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.98 : 11,981.97 = 6,267.54 : x
  2. Step 2: Convert to fraction form
    7,987.98/11,981.97 = 6,267.54/x
  3. Step 3: Cross multiply
    7,987.98x = 11,981.97 × 6,267.54
  4. Step 4: Simplify right side
    7,987.98x = 75,097,476.25
  5. Step 5: Solve for x
    x = 75,097,476.25/7,987.98
  6. Step 6: Final answer
    x = 9,401.31

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Similar ratio
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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.