Home / 18,735.38-28,107.60-5,588.78

Finding the Fourth Proportional to 18,735.38, 28,107.60 and 5,588.78

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Solution

The fourth proportional to 18,735.38, 28,107.60 and 5,588.78 is: 8,384.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.38 : 28,107.60 = 5,588.78 : x
  2. Step 2: Convert to fraction form
    18,735.38/28,107.60 = 5,588.78/x
  3. Step 3: Cross multiply
    18,735.38x = 28,107.60 × 5,588.78
  4. Step 4: Simplify right side
    18,735.38x = 157,087,192.73
  5. Step 5: Solve for x
    x = 157,087,192.73/18,735.38
  6. Step 6: Final answer
    x = 8,384.52

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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.