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Finding the Fourth Proportional to 7,224.53, 10,839.01 and 6,479.43

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Solution

The fourth proportional to 7,224.53, 10,839.01 and 6,479.43 is: 9,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.53 : 10,839.01 = 6,479.43 : x
  2. Step 2: Convert to fraction form
    7,224.53/10,839.01 = 6,479.43/x
  3. Step 3: Cross multiply
    7,224.53x = 10,839.01 × 6,479.43
  4. Step 4: Simplify right side
    7,224.53x = 70,230,655.31
  5. Step 5: Solve for x
    x = 70,230,655.31/7,224.53
  6. Step 6: Final answer
    x = 9,721.13

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1.5x scale

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.