Home / 12,252.57-18,378.87-3,487.49

Finding the Fourth Proportional to 12,252.57, 18,378.87 and 3,487.49

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Solution

The fourth proportional to 12,252.57, 18,378.87 and 3,487.49 is: 5,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.57 : 18,378.87 = 3,487.49 : x
  2. Step 2: Convert to fraction form
    12,252.57/18,378.87 = 3,487.49/x
  3. Step 3: Cross multiply
    12,252.57x = 18,378.87 × 3,487.49
  4. Step 4: Simplify right side
    12,252.57x = 64,096,016.00
  5. Step 5: Solve for x
    x = 64,096,016.00/12,252.57
  6. Step 6: Final answer
    x = 5,231.23

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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.