Home / 13,817.78-20,729.80-5,052.69

Finding the Fourth Proportional to 13,817.78, 20,729.80 and 5,052.69

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Solution

The fourth proportional to 13,817.78, 20,729.80 and 5,052.69 is: 7,580.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.78 : 20,729.80 = 5,052.69 : x
  2. Step 2: Convert to fraction form
    13,817.78/20,729.80 = 5,052.69/x
  3. Step 3: Cross multiply
    13,817.78x = 20,729.80 × 5,052.69
  4. Step 4: Simplify right side
    13,817.78x = 104,741,274.42
  5. Step 5: Solve for x
    x = 104,741,274.42/13,817.78
  6. Step 6: Final answer
    x = 7,580.18

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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.