Home / 13,722.84-20,584.25-4,957.76

Finding the Fourth Proportional to 13,722.84, 20,584.25 and 4,957.76

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Solution

The fourth proportional to 13,722.84, 20,584.25 and 4,957.76 is: 7,436.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.84 : 20,584.25 = 4,957.76 : x
  2. Step 2: Convert to fraction form
    13,722.84/20,584.25 = 4,957.76/x
  3. Step 3: Cross multiply
    13,722.84x = 20,584.25 × 4,957.76
  4. Step 4: Simplify right side
    13,722.84x = 102,051,771.28
  5. Step 5: Solve for x
    x = 102,051,771.28/13,722.84
  6. Step 6: Final answer
    x = 7,436.64

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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.