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Finding the Fourth Proportional to 10,236.71, 14,122 and 6,257

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Solution

The fourth proportional to 10,236.71, 14,122 and 6,257 is: 8,631.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,236.71 : 14,122 = 6,257 : x
  2. Step 2: Convert to fraction form
    10,236.71/14,122 = 6,257/x
  3. Step 3: Cross multiply
    10,236.71x = 14,122 × 6,257
  4. Step 4: Simplify right side
    10,236.71x = 88,361,354
  5. Step 5: Solve for x
    x = 88,361,354/10,236.71
  6. Step 6: Final answer
    x = 8,631.81

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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.