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Finding the Fourth Proportional to 18,394.92, 25,384.86 and 10,011.42

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Solution

The fourth proportional to 18,394.92, 25,384.86 and 10,011.42 is: 13,815.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.92 : 25,384.86 = 10,011.42 : x
  2. Step 2: Convert to fraction form
    18,394.92/25,384.86 = 10,011.42/x
  3. Step 3: Cross multiply
    18,394.92x = 25,384.86 × 10,011.42
  4. Step 4: Simplify right side
    18,394.92x = 254,138,495.10
  5. Step 5: Solve for x
    x = 254,138,495.10/18,394.92
  6. Step 6: Final answer
    x = 13,815.69

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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.