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Finding the Fourth Proportional to 9,891, 14,817.96 and 4,954.86

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Solution

The fourth proportional to 9,891, 14,817.96 and 4,954.86 is: 7,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891 : 14,817.96 = 4,954.86 : x
  2. Step 2: Convert to fraction form
    9,891/14,817.96 = 4,954.86/x
  3. Step 3: Cross multiply
    9,891x = 14,817.96 × 4,954.86
  4. Step 4: Simplify right side
    9,891x = 73,420,917.29
  5. Step 5: Solve for x
    x = 73,420,917.29/9,891
  6. Step 6: Final answer
    x = 7,423.00

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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.