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Finding the Fourth Proportional to 10,849, 14,971.68 and 5,881

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Solution

The fourth proportional to 10,849, 14,971.68 and 5,881 is: 8,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,849 : 14,971.68 = 5,881 : x
  2. Step 2: Convert to fraction form
    10,849/14,971.68 = 5,881/x
  3. Step 3: Cross multiply
    10,849x = 14,971.68 × 5,881
  4. Step 4: Simplify right side
    10,849x = 88,048,450.08
  5. Step 5: Solve for x
    x = 88,048,450.08/10,849
  6. Step 6: Final answer
    x = 8,115.81

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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.