Home / 13,914.54-20,867.94-6,515.10

Finding the Fourth Proportional to 13,914.54, 20,867.94 and 6,515.10

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Solution

The fourth proportional to 13,914.54, 20,867.94 and 6,515.10 is: 9,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.54 : 20,867.94 = 6,515.10 : x
  2. Step 2: Convert to fraction form
    13,914.54/20,867.94 = 6,515.10/x
  3. Step 3: Cross multiply
    13,914.54x = 20,867.94 × 6,515.10
  4. Step 4: Simplify right side
    13,914.54x = 135,956,715.89
  5. Step 5: Solve for x
    x = 135,956,715.89/13,914.54
  6. Step 6: Final answer
    x = 9,770.84

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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.