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Finding the Fourth Proportional to 18,506, 25,550.60 and 10,954.74

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Solution

The fourth proportional to 18,506, 25,550.60 and 10,954.74 is: 15,124.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506 : 25,550.60 = 10,954.74 : x
  2. Step 2: Convert to fraction form
    18,506/25,550.60 = 10,954.74/x
  3. Step 3: Cross multiply
    18,506x = 25,550.60 × 10,954.74
  4. Step 4: Simplify right side
    18,506x = 279,900,179.84
  5. Step 5: Solve for x
    x = 279,900,179.84/18,506
  6. Step 6: Final answer
    x = 15,124.83

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Why These Related Problems?

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