Home / 26,173.92-39,255.38-8,639.64

Finding the Fourth Proportional to 26,173.92, 39,255.38 and 8,639.64

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Solution

The fourth proportional to 26,173.92, 39,255.38 and 8,639.64 is: 12,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,173.92 : 39,255.38 = 8,639.64 : x
  2. Step 2: Convert to fraction form
    26,173.92/39,255.38 = 8,639.64/x
  3. Step 3: Cross multiply
    26,173.92x = 39,255.38 × 8,639.64
  4. Step 4: Simplify right side
    26,173.92x = 339,152,351.26
  5. Step 5: Solve for x
    x = 339,152,351.26/26,173.92
  6. Step 6: Final answer
    x = 12,957.64

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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.