Home / 18,112.31-27,165.55-4,961.61

Finding the Fourth Proportional to 18,112.31, 27,165.55 and 4,961.61

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Solution

The fourth proportional to 18,112.31, 27,165.55 and 4,961.61 is: 7,441.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.31 : 27,165.55 = 4,961.61 : x
  2. Step 2: Convert to fraction form
    18,112.31/27,165.55 = 4,961.61/x
  3. Step 3: Cross multiply
    18,112.31x = 27,165.55 × 4,961.61
  4. Step 4: Simplify right side
    18,112.31x = 134,784,703.90
  5. Step 5: Solve for x
    x = 134,784,703.90/18,112.31
  6. Step 6: Final answer
    x = 7,441.61

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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.