Home / 10,987.20-16,476-3,195.84

Finding the Fourth Proportional to 10,987.20, 16,476 and 3,195.84

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Solution

The fourth proportional to 10,987.20, 16,476 and 3,195.84 is: 4,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.20 : 16,476 = 3,195.84 : x
  2. Step 2: Convert to fraction form
    10,987.20/16,476 = 3,195.84/x
  3. Step 3: Cross multiply
    10,987.20x = 16,476 × 3,195.84
  4. Step 4: Simplify right side
    10,987.20x = 52,654,659.84
  5. Step 5: Solve for x
    x = 52,654,659.84/10,987.20
  6. Step 6: Final answer
    x = 4,792.36

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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.