Home / 7,147.68-10,721.76-6,336.06

Finding the Fourth Proportional to 7,147.68, 10,721.76 and 6,336.06

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Solution

The fourth proportional to 7,147.68, 10,721.76 and 6,336.06 is: 9,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.68 : 10,721.76 = 6,336.06 : x
  2. Step 2: Convert to fraction form
    7,147.68/10,721.76 = 6,336.06/x
  3. Step 3: Cross multiply
    7,147.68x = 10,721.76 × 6,336.06
  4. Step 4: Simplify right side
    7,147.68x = 67,933,714.67
  5. Step 5: Solve for x
    x = 67,933,714.67/7,147.68
  6. Step 6: Final answer
    x = 9,504.30

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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.