Home / 7,218.24-10,775.04-6,343.44

Finding the Fourth Proportional to 7,218.24, 10,775.04 and 6,343.44

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Solution

The fourth proportional to 7,218.24, 10,775.04 and 6,343.44 is: 9,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.24 : 10,775.04 = 6,343.44 : x
  2. Step 2: Convert to fraction form
    7,218.24/10,775.04 = 6,343.44/x
  3. Step 3: Cross multiply
    7,218.24x = 10,775.04 × 6,343.44
  4. Step 4: Simplify right side
    7,218.24x = 68,350,819.74
  5. Step 5: Solve for x
    x = 68,350,819.74/7,218.24
  6. Step 6: Final answer
    x = 9,469.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.