Home / 7,986.06-11,972.10-3,303.12

Finding the Fourth Proportional to 7,986.06, 11,972.10 and 3,303.12

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Solution

The fourth proportional to 7,986.06, 11,972.10 and 3,303.12 is: 4,951.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.06 : 11,972.10 = 3,303.12 : x
  2. Step 2: Convert to fraction form
    7,986.06/11,972.10 = 3,303.12/x
  3. Step 3: Cross multiply
    7,986.06x = 11,972.10 × 3,303.12
  4. Step 4: Simplify right side
    7,986.06x = 39,545,282.95
  5. Step 5: Solve for x
    x = 39,545,282.95/7,986.06
  6. Step 6: Final answer
    x = 4,951.79

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Half scale
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Double scale
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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.