Home / 18,217.24-27,318.36-7,122.34

Finding the Fourth Proportional to 18,217.24, 27,318.36 and 7,122.34

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Solution

The fourth proportional to 18,217.24, 27,318.36 and 7,122.34 is: 10,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.24 : 27,318.36 = 7,122.34 : x
  2. Step 2: Convert to fraction form
    18,217.24/27,318.36 = 7,122.34/x
  3. Step 3: Cross multiply
    18,217.24x = 27,318.36 × 7,122.34
  4. Step 4: Simplify right side
    18,217.24x = 194,570,648.16
  5. Step 5: Solve for x
    x = 194,570,648.16/18,217.24
  6. Step 6: Final answer
    x = 10,680.58

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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.