Home / 11,323.28-16,987.28-3,426.36

Finding the Fourth Proportional to 11,323.28, 16,987.28 and 3,426.36

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Solution

The fourth proportional to 11,323.28, 16,987.28 and 3,426.36 is: 5,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,323.28 : 16,987.28 = 3,426.36 : x
  2. Step 2: Convert to fraction form
    11,323.28/16,987.28 = 3,426.36/x
  3. Step 3: Cross multiply
    11,323.28x = 16,987.28 × 3,426.36
  4. Step 4: Simplify right side
    11,323.28x = 58,204,519.57
  5. Step 5: Solve for x
    x = 58,204,519.57/11,323.28
  6. Step 6: Final answer
    x = 5,140.25

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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.