Home / 26,121.15-39,181.77-6,399.77

Finding the Fourth Proportional to 26,121.15, 39,181.77 and 6,399.77

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Solution

The fourth proportional to 26,121.15, 39,181.77 and 6,399.77 is: 9,599.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,121.15 : 39,181.77 = 6,399.77 : x
  2. Step 2: Convert to fraction form
    26,121.15/39,181.77 = 6,399.77/x
  3. Step 3: Cross multiply
    26,121.15x = 39,181.77 × 6,399.77
  4. Step 4: Simplify right side
    26,121.15x = 250,754,120.28
  5. Step 5: Solve for x
    x = 250,754,120.28/26,121.15
  6. Step 6: Final answer
    x = 9,599.66

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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.