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Finding the Fourth Proportional to 8,569.78, 12,858.31 and 3,026.14

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Solution

The fourth proportional to 8,569.78, 12,858.31 and 3,026.14 is: 4,540.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,569.78 : 12,858.31 = 3,026.14 : x
  2. Step 2: Convert to fraction form
    8,569.78/12,858.31 = 3,026.14/x
  3. Step 3: Cross multiply
    8,569.78x = 12,858.31 × 3,026.14
  4. Step 4: Simplify right side
    8,569.78x = 38,911,046.22
  5. Step 5: Solve for x
    x = 38,911,046.22/8,569.78
  6. Step 6: Final answer
    x = 4,540.50

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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.