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Finding the Fourth Proportional to 9,889.88, 14,840.88 and 3,966.14

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Solution

The fourth proportional to 9,889.88, 14,840.88 and 3,966.14 is: 5,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.88 : 14,840.88 = 3,966.14 : x
  2. Step 2: Convert to fraction form
    9,889.88/14,840.88 = 3,966.14/x
  3. Step 3: Cross multiply
    9,889.88x = 14,840.88 × 3,966.14
  4. Step 4: Simplify right side
    9,889.88x = 58,860,950.87
  5. Step 5: Solve for x
    x = 58,860,950.87/9,889.88
  6. Step 6: Final answer
    x = 5,951.64

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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.