Home / 13,537.08-20,293.28-5,211.76

Finding the Fourth Proportional to 13,537.08, 20,293.28 and 5,211.76

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Solution

The fourth proportional to 13,537.08, 20,293.28 and 5,211.76 is: 7,812.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.08 : 20,293.28 = 5,211.76 : x
  2. Step 2: Convert to fraction form
    13,537.08/20,293.28 = 5,211.76/x
  3. Step 3: Cross multiply
    13,537.08x = 20,293.28 × 5,211.76
  4. Step 4: Simplify right side
    13,537.08x = 105,763,704.97
  5. Step 5: Solve for x
    x = 105,763,704.97/13,537.08
  6. Step 6: Final answer
    x = 7,812.89

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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.