Home / 12,443.19-18,664.92-3,678.18

Finding the Fourth Proportional to 12,443.19, 18,664.92 and 3,678.18

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Solution

The fourth proportional to 12,443.19, 18,664.92 and 3,678.18 is: 5,517.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.19 : 18,664.92 = 3,678.18 : x
  2. Step 2: Convert to fraction form
    12,443.19/18,664.92 = 3,678.18/x
  3. Step 3: Cross multiply
    12,443.19x = 18,664.92 × 3,678.18
  4. Step 4: Simplify right side
    12,443.19x = 68,652,935.45
  5. Step 5: Solve for x
    x = 68,652,935.45/12,443.19
  6. Step 6: Final answer
    x = 5,517.31

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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.