Home / 12,426.14-18,640.42-3,541.86

Finding the Fourth Proportional to 12,426.14, 18,640.42 and 3,541.86

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Solution

The fourth proportional to 12,426.14, 18,640.42 and 3,541.86 is: 5,313.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.14 : 18,640.42 = 3,541.86 : x
  2. Step 2: Convert to fraction form
    12,426.14/18,640.42 = 3,541.86/x
  3. Step 3: Cross multiply
    12,426.14x = 18,640.42 × 3,541.86
  4. Step 4: Simplify right side
    12,426.14x = 66,021,749.13
  5. Step 5: Solve for x
    x = 66,021,749.13/12,426.14
  6. Step 6: Final answer
    x = 5,313.13

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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.