Home / 12,722.68-17,549.22-9,191.08

Finding the Fourth Proportional to 12,722.68, 17,549.22 and 9,191.08

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Solution

The fourth proportional to 12,722.68, 17,549.22 and 9,191.08 is: 12,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.68 : 17,549.22 = 9,191.08 : x
  2. Step 2: Convert to fraction form
    12,722.68/17,549.22 = 9,191.08/x
  3. Step 3: Cross multiply
    12,722.68x = 17,549.22 × 9,191.08
  4. Step 4: Simplify right side
    12,722.68x = 161,296,284.96
  5. Step 5: Solve for x
    x = 161,296,284.96/12,722.68
  6. Step 6: Final answer
    x = 12,677.85

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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.