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Finding the Fourth Proportional to 18,382.54, 27,576.85 and 7,289.29

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Solution

The fourth proportional to 18,382.54, 27,576.85 and 7,289.29 is: 10,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.54 : 27,576.85 = 7,289.29 : x
  2. Step 2: Convert to fraction form
    18,382.54/27,576.85 = 7,289.29/x
  3. Step 3: Cross multiply
    18,382.54x = 27,576.85 × 7,289.29
  4. Step 4: Simplify right side
    18,382.54x = 201,015,482.61
  5. Step 5: Solve for x
    x = 201,015,482.61/18,382.54
  6. Step 6: Final answer
    x = 10,935.13

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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.