Home / 26,158.78-39,238.19-8,629.98

Finding the Fourth Proportional to 26,158.78, 39,238.19 and 8,629.98

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Solution

The fourth proportional to 26,158.78, 39,238.19 and 8,629.98 is: 12,944.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,158.78 : 39,238.19 = 8,629.98 : x
  2. Step 2: Convert to fraction form
    26,158.78/39,238.19 = 8,629.98/x
  3. Step 3: Cross multiply
    26,158.78x = 39,238.19 × 8,629.98
  4. Step 4: Simplify right side
    26,158.78x = 338,624,637.01
  5. Step 5: Solve for x
    x = 338,624,637.01/26,158.78
  6. Step 6: Final answer
    x = 12,944.97

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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.