Home / 8,720.37-12,022.38-5,735.07

Finding the Fourth Proportional to 8,720.37, 12,022.38 and 5,735.07

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Solution

The fourth proportional to 8,720.37, 12,022.38 and 5,735.07 is: 7,906.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.37 : 12,022.38 = 5,735.07 : x
  2. Step 2: Convert to fraction form
    8,720.37/12,022.38 = 5,735.07/x
  3. Step 3: Cross multiply
    8,720.37x = 12,022.38 × 5,735.07
  4. Step 4: Simplify right side
    8,720.37x = 68,949,190.87
  5. Step 5: Solve for x
    x = 68,949,190.87/8,720.37
  6. Step 6: Final answer
    x = 7,906.68

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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.