Home / 12,426.85-18,637.85-3,659.41

Finding the Fourth Proportional to 12,426.85, 18,637.85 and 3,659.41

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Solution

The fourth proportional to 12,426.85, 18,637.85 and 3,659.41 is: 5,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.85 : 18,637.85 = 3,659.41 : x
  2. Step 2: Convert to fraction form
    12,426.85/18,637.85 = 3,659.41/x
  3. Step 3: Cross multiply
    12,426.85x = 18,637.85 × 3,659.41
  4. Step 4: Simplify right side
    12,426.85x = 68,203,546.53
  5. Step 5: Solve for x
    x = 68,203,546.53/12,426.85
  6. Step 6: Final answer
    x = 5,488.40

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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.