Home / 13,769.18-20,653.78-3,381.02

Finding the Fourth Proportional to 13,769.18, 20,653.78 and 3,381.02

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Solution

The fourth proportional to 13,769.18, 20,653.78 and 3,381.02 is: 5,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.18 : 20,653.78 = 3,381.02 : x
  2. Step 2: Convert to fraction form
    13,769.18/20,653.78 = 3,381.02/x
  3. Step 3: Cross multiply
    13,769.18x = 20,653.78 × 3,381.02
  4. Step 4: Simplify right side
    13,769.18x = 69,830,843.26
  5. Step 5: Solve for x
    x = 69,830,843.26/13,769.18
  6. Step 6: Final answer
    x = 5,071.53

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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.