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Finding the Fourth Proportional to 18,373, 27,555.39 and 7,282.18

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Solution

The fourth proportional to 18,373, 27,555.39 and 7,282.18 is: 10,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373 : 27,555.39 = 7,282.18 : x
  2. Step 2: Convert to fraction form
    18,373/27,555.39 = 7,282.18/x
  3. Step 3: Cross multiply
    18,373x = 27,555.39 × 7,282.18
  4. Step 4: Simplify right side
    18,373x = 200,663,309.95
  5. Step 5: Solve for x
    x = 200,663,309.95/18,373
  6. Step 6: Final answer
    x = 10,921.64

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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.