Home / 7,948.68-11,911.94-6,772.56

Finding the Fourth Proportional to 7,948.68, 11,911.94 and 6,772.56

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Solution

The fourth proportional to 7,948.68, 11,911.94 and 6,772.56 is: 10,149.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.68 : 11,911.94 = 6,772.56 : x
  2. Step 2: Convert to fraction form
    7,948.68/11,911.94 = 6,772.56/x
  3. Step 3: Cross multiply
    7,948.68x = 11,911.94 × 6,772.56
  4. Step 4: Simplify right side
    7,948.68x = 80,674,328.37
  5. Step 5: Solve for x
    x = 80,674,328.37/7,948.68
  6. Step 6: Final answer
    x = 10,149.40

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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.