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Finding the Fourth Proportional to 7,995.98, 11,987.13 and 3,069.16

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Solution

The fourth proportional to 7,995.98, 11,987.13 and 3,069.16 is: 4,601.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.98 : 11,987.13 = 3,069.16 : x
  2. Step 2: Convert to fraction form
    7,995.98/11,987.13 = 3,069.16/x
  3. Step 3: Cross multiply
    7,995.98x = 11,987.13 × 3,069.16
  4. Step 4: Simplify right side
    7,995.98x = 36,790,419.91
  5. Step 5: Solve for x
    x = 36,790,419.91/7,995.98
  6. Step 6: Final answer
    x = 4,601.11

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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.