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Finding the Fourth Proportional to 26,603.58, 39,911.85 and 8,135.58

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Solution

The fourth proportional to 26,603.58, 39,911.85 and 8,135.58 is: 12,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,603.58 : 39,911.85 = 8,135.58 : x
  2. Step 2: Convert to fraction form
    26,603.58/39,911.85 = 8,135.58/x
  3. Step 3: Cross multiply
    26,603.58x = 39,911.85 × 8,135.58
  4. Step 4: Simplify right side
    26,603.58x = 324,706,048.62
  5. Step 5: Solve for x
    x = 324,706,048.62/26,603.58
  6. Step 6: Final answer
    x = 12,205.35

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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.