Home / 13,842.24-20,766.64-5,522.72

Finding the Fourth Proportional to 13,842.24, 20,766.64 and 5,522.72

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Solution

The fourth proportional to 13,842.24, 20,766.64 and 5,522.72 is: 8,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.24 : 20,766.64 = 5,522.72 : x
  2. Step 2: Convert to fraction form
    13,842.24/20,766.64 = 5,522.72/x
  3. Step 3: Cross multiply
    13,842.24x = 20,766.64 × 5,522.72
  4. Step 4: Simplify right side
    13,842.24x = 114,688,338.06
  5. Step 5: Solve for x
    x = 114,688,338.06/13,842.24
  6. Step 6: Final answer
    x = 8,285.39

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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.