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Finding the Fourth Proportional to 12,893.29, 17,789.42 and 7,587.11

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Solution

The fourth proportional to 12,893.29, 17,789.42 and 7,587.11 is: 10,468.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,893.29 : 17,789.42 = 7,587.11 : x
  2. Step 2: Convert to fraction form
    12,893.29/17,789.42 = 7,587.11/x
  3. Step 3: Cross multiply
    12,893.29x = 17,789.42 × 7,587.11
  4. Step 4: Simplify right side
    12,893.29x = 134,970,248.44
  5. Step 5: Solve for x
    x = 134,970,248.44/12,893.29
  6. Step 6: Final answer
    x = 10,468.26

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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.