Home / 9,351.40-13,998.30-7,681

Finding the Fourth Proportional to 9,351.40, 13,998.30 and 7,681

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Solution

The fourth proportional to 9,351.40, 13,998.30 and 7,681 is: 11,497.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351.40 : 13,998.30 = 7,681 : x
  2. Step 2: Convert to fraction form
    9,351.40/13,998.30 = 7,681/x
  3. Step 3: Cross multiply
    9,351.40x = 13,998.30 × 7,681
  4. Step 4: Simplify right side
    9,351.40x = 107,520,942.30
  5. Step 5: Solve for x
    x = 107,520,942.30/9,351.40
  6. Step 6: Final answer
    x = 11,497.84

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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.