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Finding the Fourth Proportional to 26,603.67, 39,905.55 and 8,135.67

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Solution

The fourth proportional to 26,603.67, 39,905.55 and 8,135.67 is: 12,203.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,603.67 : 39,905.55 = 8,135.67 : x
  2. Step 2: Convert to fraction form
    26,603.67/39,905.55 = 8,135.67/x
  3. Step 3: Cross multiply
    26,603.67x = 39,905.55 × 8,135.67
  4. Step 4: Simplify right side
    26,603.67x = 324,658,385.97
  5. Step 5: Solve for x
    x = 324,658,385.97/26,603.67
  6. Step 6: Final answer
    x = 12,203.52

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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.