Home / 18,251.87-27,376.43-5,105.27

Finding the Fourth Proportional to 18,251.87, 27,376.43 and 5,105.27

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Solution

The fourth proportional to 18,251.87, 27,376.43 and 5,105.27 is: 7,657.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.87 : 27,376.43 = 5,105.27 : x
  2. Step 2: Convert to fraction form
    18,251.87/27,376.43 = 5,105.27/x
  3. Step 3: Cross multiply
    18,251.87x = 27,376.43 × 5,105.27
  4. Step 4: Simplify right side
    18,251.87x = 139,763,904.38
  5. Step 5: Solve for x
    x = 139,763,904.38/18,251.87
  6. Step 6: Final answer
    x = 7,657.51

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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.