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Finding the Fourth Proportional to 18,750.96, 25,876.32 and 10,253.16

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Solution

The fourth proportional to 18,750.96, 25,876.32 and 10,253.16 is: 14,149.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.96 : 25,876.32 = 10,253.16 : x
  2. Step 2: Convert to fraction form
    18,750.96/25,876.32 = 10,253.16/x
  3. Step 3: Cross multiply
    18,750.96x = 25,876.32 × 10,253.16
  4. Step 4: Simplify right side
    18,750.96x = 265,314,049.17
  5. Step 5: Solve for x
    x = 265,314,049.17/18,750.96
  6. Step 6: Final answer
    x = 14,149.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.