Home / 26,108.75-39,163.14-7,640.75

Finding the Fourth Proportional to 26,108.75, 39,163.14 and 7,640.75

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Solution

The fourth proportional to 26,108.75, 39,163.14 and 7,640.75 is: 11,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,108.75 : 39,163.14 = 7,640.75 : x
  2. Step 2: Convert to fraction form
    26,108.75/39,163.14 = 7,640.75/x
  3. Step 3: Cross multiply
    26,108.75x = 39,163.14 × 7,640.75
  4. Step 4: Simplify right side
    26,108.75x = 299,235,761.96
  5. Step 5: Solve for x
    x = 299,235,761.96/26,108.75
  6. Step 6: Final answer
    x = 11,461.13

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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.