Home / 18,128.57-27,197.33-5,647.64

Finding the Fourth Proportional to 18,128.57, 27,197.33 and 5,647.64

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Solution

The fourth proportional to 18,128.57, 27,197.33 and 5,647.64 is: 8,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.57 : 27,197.33 = 5,647.64 : x
  2. Step 2: Convert to fraction form
    18,128.57/27,197.33 = 5,647.64/x
  3. Step 3: Cross multiply
    18,128.57x = 27,197.33 × 5,647.64
  4. Step 4: Simplify right side
    18,128.57x = 153,600,564.58
  5. Step 5: Solve for x
    x = 153,600,564.58/18,128.57
  6. Step 6: Final answer
    x = 8,472.85

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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.