Home / 18,271.74-27,408.15-7,181.22

Finding the Fourth Proportional to 18,271.74, 27,408.15 and 7,181.22

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Solution

The fourth proportional to 18,271.74, 27,408.15 and 7,181.22 is: 10,772.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.74 : 27,408.15 = 7,181.22 : x
  2. Step 2: Convert to fraction form
    18,271.74/27,408.15 = 7,181.22/x
  3. Step 3: Cross multiply
    18,271.74x = 27,408.15 × 7,181.22
  4. Step 4: Simplify right side
    18,271.74x = 196,823,954.94
  5. Step 5: Solve for x
    x = 196,823,954.94/18,271.74
  6. Step 6: Final answer
    x = 10,772.04

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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.