Home / 12,761.15-17,610.82-7,455.85

Finding the Fourth Proportional to 12,761.15, 17,610.82 and 7,455.85

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Solution

The fourth proportional to 12,761.15, 17,610.82 and 7,455.85 is: 10,289.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.15 : 17,610.82 = 7,455.85 : x
  2. Step 2: Convert to fraction form
    12,761.15/17,610.82 = 7,455.85/x
  3. Step 3: Cross multiply
    12,761.15x = 17,610.82 × 7,455.85
  4. Step 4: Simplify right side
    12,761.15x = 131,303,569.63
  5. Step 5: Solve for x
    x = 131,303,569.63/12,761.15
  6. Step 6: Final answer
    x = 10,289.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.