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Finding the Fourth Proportional to 18,449.19, 25,460.10 and 10,065.69

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Solution

The fourth proportional to 18,449.19, 25,460.10 and 10,065.69 is: 13,890.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.19 : 25,460.10 = 10,065.69 : x
  2. Step 2: Convert to fraction form
    18,449.19/25,460.10 = 10,065.69/x
  3. Step 3: Cross multiply
    18,449.19x = 25,460.10 × 10,065.69
  4. Step 4: Simplify right side
    18,449.19x = 256,273,473.97
  5. Step 5: Solve for x
    x = 256,273,473.97/18,449.19
  6. Step 6: Final answer
    x = 13,890.77

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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.