Home / 18,142.31-27,212.25-4,994.80

Finding the Fourth Proportional to 18,142.31, 27,212.25 and 4,994.80

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Solution

The fourth proportional to 18,142.31, 27,212.25 and 4,994.80 is: 7,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.31 : 27,212.25 = 4,994.80 : x
  2. Step 2: Convert to fraction form
    18,142.31/27,212.25 = 4,994.80/x
  3. Step 3: Cross multiply
    18,142.31x = 27,212.25 × 4,994.80
  4. Step 4: Simplify right side
    18,142.31x = 135,919,697.00
  5. Step 5: Solve for x
    x = 135,919,697.00/18,142.31
  6. Step 6: Final answer
    x = 7,491.86

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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.