Home / 12,257.28-18,387-3,492

Finding the Fourth Proportional to 12,257.28, 18,387 and 3,492

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Solution

The fourth proportional to 12,257.28, 18,387 and 3,492 is: 5,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.28 : 18,387 = 3,492 : x
  2. Step 2: Convert to fraction form
    12,257.28/18,387 = 3,492/x
  3. Step 3: Cross multiply
    12,257.28x = 18,387 × 3,492
  4. Step 4: Simplify right side
    12,257.28x = 64,207,404
  5. Step 5: Solve for x
    x = 64,207,404/12,257.28
  6. Step 6: Final answer
    x = 5,238.31

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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.