Home / 18,142.38-27,212.82-4,994.40

Finding the Fourth Proportional to 18,142.38, 27,212.82 and 4,994.40

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Solution

The fourth proportional to 18,142.38, 27,212.82 and 4,994.40 is: 7,491.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.38 : 27,212.82 = 4,994.40 : x
  2. Step 2: Convert to fraction form
    18,142.38/27,212.82 = 4,994.40/x
  3. Step 3: Cross multiply
    18,142.38x = 27,212.82 × 4,994.40
  4. Step 4: Simplify right side
    18,142.38x = 135,911,708.21
  5. Step 5: Solve for x
    x = 135,911,708.21/18,142.38
  6. Step 6: Final answer
    x = 7,491.39

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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.