Home / 13,902.18-20,857.59-5,584.02

Finding the Fourth Proportional to 13,902.18, 20,857.59 and 5,584.02

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Solution

The fourth proportional to 13,902.18, 20,857.59 and 5,584.02 is: 8,377.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.18 : 20,857.59 = 5,584.02 : x
  2. Step 2: Convert to fraction form
    13,902.18/20,857.59 = 5,584.02/x
  3. Step 3: Cross multiply
    13,902.18x = 20,857.59 × 5,584.02
  4. Step 4: Simplify right side
    13,902.18x = 116,469,199.71
  5. Step 5: Solve for x
    x = 116,469,199.71/13,902.18
  6. Step 6: Final answer
    x = 8,377.77

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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.