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Finding the Fourth Proportional to 9,993.84, 14,991 and 3,419.98

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Solution

The fourth proportional to 9,993.84, 14,991 and 3,419.98 is: 5,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.84 : 14,991 = 3,419.98 : x
  2. Step 2: Convert to fraction form
    9,993.84/14,991 = 3,419.98/x
  3. Step 3: Cross multiply
    9,993.84x = 14,991 × 3,419.98
  4. Step 4: Simplify right side
    9,993.84x = 51,268,920.18
  5. Step 5: Solve for x
    x = 51,268,920.18/9,993.84
  6. Step 6: Final answer
    x = 5,130.05

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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.