Home / 15,025.57-20,735.19-8,311.07

Finding the Fourth Proportional to 15,025.57, 20,735.19 and 8,311.07

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Solution

The fourth proportional to 15,025.57, 20,735.19 and 8,311.07 is: 11,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025.57 : 20,735.19 = 8,311.07 : x
  2. Step 2: Convert to fraction form
    15,025.57/20,735.19 = 8,311.07/x
  3. Step 3: Cross multiply
    15,025.57x = 20,735.19 × 8,311.07
  4. Step 4: Simplify right side
    15,025.57x = 172,331,667.39
  5. Step 5: Solve for x
    x = 172,331,667.39/15,025.57
  6. Step 6: Final answer
    x = 11,469.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.