Home / 9,338.72-13,977.84-6,872.96

Finding the Fourth Proportional to 9,338.72, 13,977.84 and 6,872.96

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Solution

The fourth proportional to 9,338.72, 13,977.84 and 6,872.96 is: 10,287.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,338.72 : 13,977.84 = 6,872.96 : x
  2. Step 2: Convert to fraction form
    9,338.72/13,977.84 = 6,872.96/x
  3. Step 3: Cross multiply
    9,338.72x = 13,977.84 × 6,872.96
  4. Step 4: Simplify right side
    9,338.72x = 96,069,135.21
  5. Step 5: Solve for x
    x = 96,069,135.21/9,338.72
  6. Step 6: Final answer
    x = 10,287.18

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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.