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Finding the Fourth Proportional to 10,406, 15,611.52 and 4,250

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Solution

The fourth proportional to 10,406, 15,611.52 and 4,250 is: 6,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406 : 15,611.52 = 4,250 : x
  2. Step 2: Convert to fraction form
    10,406/15,611.52 = 4,250/x
  3. Step 3: Cross multiply
    10,406x = 15,611.52 × 4,250
  4. Step 4: Simplify right side
    10,406x = 66,348,960
  5. Step 5: Solve for x
    x = 66,348,960/10,406
  6. Step 6: Final answer
    x = 6,376.03

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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.