Home / 12,252.87-18,382.39-3,487.79

Finding the Fourth Proportional to 12,252.87, 18,382.39 and 3,487.79

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Solution

The fourth proportional to 12,252.87, 18,382.39 and 3,487.79 is: 5,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.87 : 18,382.39 = 3,487.79 : x
  2. Step 2: Convert to fraction form
    12,252.87/18,382.39 = 3,487.79/x
  3. Step 3: Cross multiply
    12,252.87x = 18,382.39 × 3,487.79
  4. Step 4: Simplify right side
    12,252.87x = 64,113,953.25
  5. Step 5: Solve for x
    x = 64,113,953.25/12,252.87
  6. Step 6: Final answer
    x = 5,232.57

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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.