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Finding the Fourth Proportional to 18,129.96, 25,018.50 and 10,676.52

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Solution

The fourth proportional to 18,129.96, 25,018.50 and 10,676.52 is: 14,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.96 : 25,018.50 = 10,676.52 : x
  2. Step 2: Convert to fraction form
    18,129.96/25,018.50 = 10,676.52/x
  3. Step 3: Cross multiply
    18,129.96x = 25,018.50 × 10,676.52
  4. Step 4: Simplify right side
    18,129.96x = 267,110,515.62
  5. Step 5: Solve for x
    x = 267,110,515.62/18,129.96
  6. Step 6: Final answer
    x = 14,733.10

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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.