Home / 13,551.17-20,311.92-6,977.75

Finding the Fourth Proportional to 13,551.17, 20,311.92 and 6,977.75

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Solution

The fourth proportional to 13,551.17, 20,311.92 and 6,977.75 is: 10,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.17 : 20,311.92 = 6,977.75 : x
  2. Step 2: Convert to fraction form
    13,551.17/20,311.92 = 6,977.75/x
  3. Step 3: Cross multiply
    13,551.17x = 20,311.92 × 6,977.75
  4. Step 4: Simplify right side
    13,551.17x = 141,731,466.44
  5. Step 5: Solve for x
    x = 141,731,466.44/13,551.17
  6. Step 6: Final answer
    x = 10,458.99

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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.