Home / 7,709.72-11,560.16-2,371.50

Finding the Fourth Proportional to 7,709.72, 11,560.16 and 2,371.50

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Solution

The fourth proportional to 7,709.72, 11,560.16 and 2,371.50 is: 3,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.72 : 11,560.16 = 2,371.50 : x
  2. Step 2: Convert to fraction form
    7,709.72/11,560.16 = 2,371.50/x
  3. Step 3: Cross multiply
    7,709.72x = 11,560.16 × 2,371.50
  4. Step 4: Simplify right side
    7,709.72x = 27,414,919.44
  5. Step 5: Solve for x
    x = 27,414,919.44/7,709.72
  6. Step 6: Final answer
    x = 3,555.89

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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.