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Finding the Fourth Proportional to 18,251.71, 27,377.60 and 5,104.19

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Solution

The fourth proportional to 18,251.71, 27,377.60 and 5,104.19 is: 7,656.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.71 : 27,377.60 = 5,104.19 : x
  2. Step 2: Convert to fraction form
    18,251.71/27,377.60 = 5,104.19/x
  3. Step 3: Cross multiply
    18,251.71x = 27,377.60 × 5,104.19
  4. Step 4: Simplify right side
    18,251.71x = 139,740,515.07
  5. Step 5: Solve for x
    x = 139,740,515.07/18,251.71
  6. Step 6: Final answer
    x = 7,656.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.