Home / 26,169.11-39,249.81-8,639.09

Finding the Fourth Proportional to 26,169.11, 39,249.81 and 8,639.09

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Solution

The fourth proportional to 26,169.11, 39,249.81 and 8,639.09 is: 12,957.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,169.11 : 39,249.81 = 8,639.09 : x
  2. Step 2: Convert to fraction form
    26,169.11/39,249.81 = 8,639.09/x
  3. Step 3: Cross multiply
    26,169.11x = 39,249.81 × 8,639.09
  4. Step 4: Simplify right side
    26,169.11x = 339,082,444.82
  5. Step 5: Solve for x
    x = 339,082,444.82/26,169.11
  6. Step 6: Final answer
    x = 12,957.36

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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.