Home / 13,207.26-18,229.40-8,965.42

Finding the Fourth Proportional to 13,207.26, 18,229.40 and 8,965.42

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Solution

The fourth proportional to 13,207.26, 18,229.40 and 8,965.42 is: 12,374.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.26 : 18,229.40 = 8,965.42 : x
  2. Step 2: Convert to fraction form
    13,207.26/18,229.40 = 8,965.42/x
  3. Step 3: Cross multiply
    13,207.26x = 18,229.40 × 8,965.42
  4. Step 4: Simplify right side
    13,207.26x = 163,434,227.35
  5. Step 5: Solve for x
    x = 163,434,227.35/13,207.26
  6. Step 6: Final answer
    x = 12,374.57

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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.