Home / 26,403.78-39,601.44-8,634.30

Finding the Fourth Proportional to 26,403.78, 39,601.44 and 8,634.30

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Solution

The fourth proportional to 26,403.78, 39,601.44 and 8,634.30 is: 12,950.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,403.78 : 39,601.44 = 8,634.30 : x
  2. Step 2: Convert to fraction form
    26,403.78/39,601.44 = 8,634.30/x
  3. Step 3: Cross multiply
    26,403.78x = 39,601.44 × 8,634.30
  4. Step 4: Simplify right side
    26,403.78x = 341,930,713.39
  5. Step 5: Solve for x
    x = 341,930,713.39/26,403.78
  6. Step 6: Final answer
    x = 12,950.07

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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.