Home / 13,207.59-18,195.84-9,222.39

Finding the Fourth Proportional to 13,207.59, 18,195.84 and 9,222.39

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Solution

The fourth proportional to 13,207.59, 18,195.84 and 9,222.39 is: 12,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.59 : 18,195.84 = 9,222.39 : x
  2. Step 2: Convert to fraction form
    13,207.59/18,195.84 = 9,222.39/x
  3. Step 3: Cross multiply
    13,207.59x = 18,195.84 × 9,222.39
  4. Step 4: Simplify right side
    13,207.59x = 167,809,132.86
  5. Step 5: Solve for x
    x = 167,809,132.86/13,207.59
  6. Step 6: Final answer
    x = 12,705.51

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Similar ratio
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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.