Home / 13,286.68-18,348.08-8,327.32

Finding the Fourth Proportional to 13,286.68, 18,348.08 and 8,327.32

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Solution

The fourth proportional to 13,286.68, 18,348.08 and 8,327.32 is: 11,499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.68 : 18,348.08 = 8,327.32 : x
  2. Step 2: Convert to fraction form
    13,286.68/18,348.08 = 8,327.32/x
  3. Step 3: Cross multiply
    13,286.68x = 18,348.08 × 8,327.32
  4. Step 4: Simplify right side
    13,286.68x = 152,790,333.55
  5. Step 5: Solve for x
    x = 152,790,333.55/13,286.68
  6. Step 6: Final answer
    x = 11,499.51

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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.