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Finding the Fourth Proportional to 12,610.63, 17,396.82 and 8,135.82

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Solution

The fourth proportional to 12,610.63, 17,396.82 and 8,135.82 is: 11,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.63 : 17,396.82 = 8,135.82 : x
  2. Step 2: Convert to fraction form
    12,610.63/17,396.82 = 8,135.82/x
  3. Step 3: Cross multiply
    12,610.63x = 17,396.82 × 8,135.82
  4. Step 4: Simplify right side
    12,610.63x = 141,537,396.09
  5. Step 5: Solve for x
    x = 141,537,396.09/12,610.63
  6. Step 6: Final answer
    x = 11,223.66

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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.