Home / 9,956.98-13,740.36-5,419.75

Finding the Fourth Proportional to 9,956.98, 13,740.36 and 5,419.75

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Solution

The fourth proportional to 9,956.98, 13,740.36 and 5,419.75 is: 7,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.98 : 13,740.36 = 5,419.75 : x
  2. Step 2: Convert to fraction form
    9,956.98/13,740.36 = 5,419.75/x
  3. Step 3: Cross multiply
    9,956.98x = 13,740.36 × 5,419.75
  4. Step 4: Simplify right side
    9,956.98x = 74,469,316.11
  5. Step 5: Solve for x
    x = 74,469,316.11/9,956.98
  6. Step 6: Final answer
    x = 7,479.11

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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.