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Finding the Fourth Proportional to 13,310.95, 18,375.02 and 8,597.53

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Solution

The fourth proportional to 13,310.95, 18,375.02 and 8,597.53 is: 11,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.95 : 18,375.02 = 8,597.53 : x
  2. Step 2: Convert to fraction form
    13,310.95/18,375.02 = 8,597.53/x
  3. Step 3: Cross multiply
    13,310.95x = 18,375.02 × 8,597.53
  4. Step 4: Simplify right side
    13,310.95x = 157,979,742.71
  5. Step 5: Solve for x
    x = 157,979,742.71/13,310.95
  6. Step 6: Final answer
    x = 11,868.40

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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.