Home / 13,204.62-18,207.45-8,418.18

Finding the Fourth Proportional to 13,204.62, 18,207.45 and 8,418.18

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Solution

The fourth proportional to 13,204.62, 18,207.45 and 8,418.18 is: 11,607.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.62 : 18,207.45 = 8,418.18 : x
  2. Step 2: Convert to fraction form
    13,204.62/18,207.45 = 8,418.18/x
  3. Step 3: Cross multiply
    13,204.62x = 18,207.45 × 8,418.18
  4. Step 4: Simplify right side
    13,204.62x = 153,273,591.44
  5. Step 5: Solve for x
    x = 153,273,591.44/13,204.62
  6. Step 6: Final answer
    x = 11,607.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.