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Finding the Fourth Proportional to 18,162.85, 25,064.76 and 10,205.07

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Solution

The fourth proportional to 18,162.85, 25,064.76 and 10,205.07 is: 14,083.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.85 : 25,064.76 = 10,205.07 : x
  2. Step 2: Convert to fraction form
    18,162.85/25,064.76 = 10,205.07/x
  3. Step 3: Cross multiply
    18,162.85x = 25,064.76 × 10,205.07
  4. Step 4: Simplify right side
    18,162.85x = 255,787,579.31
  5. Step 5: Solve for x
    x = 255,787,579.31/18,162.85
  6. Step 6: Final answer
    x = 14,083.01

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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.