Home / 7,946.12-11,919.75-2,102.66

Finding the Fourth Proportional to 7,946.12, 11,919.75 and 2,102.66

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Solution

The fourth proportional to 7,946.12, 11,919.75 and 2,102.66 is: 3,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.12 : 11,919.75 = 2,102.66 : x
  2. Step 2: Convert to fraction form
    7,946.12/11,919.75 = 2,102.66/x
  3. Step 3: Cross multiply
    7,946.12x = 11,919.75 × 2,102.66
  4. Step 4: Simplify right side
    7,946.12x = 25,063,126.32
  5. Step 5: Solve for x
    x = 25,063,126.32/7,946.12
  6. Step 6: Final answer
    x = 3,154.14

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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.