Home / 12,445.29-17,168.88-8,195.22

Finding the Fourth Proportional to 12,445.29, 17,168.88 and 8,195.22

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Solution

The fourth proportional to 12,445.29, 17,168.88 and 8,195.22 is: 11,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.29 : 17,168.88 = 8,195.22 : x
  2. Step 2: Convert to fraction form
    12,445.29/17,168.88 = 8,195.22/x
  3. Step 3: Cross multiply
    12,445.29x = 17,168.88 × 8,195.22
  4. Step 4: Simplify right side
    12,445.29x = 140,702,748.75
  5. Step 5: Solve for x
    x = 140,702,748.75/12,445.29
  6. Step 6: Final answer
    x = 11,305.70

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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.