Home / 7,213.68-10,824.57-3,318.39

Finding the Fourth Proportional to 7,213.68, 10,824.57 and 3,318.39

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Solution

The fourth proportional to 7,213.68, 10,824.57 and 3,318.39 is: 4,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.68 : 10,824.57 = 3,318.39 : x
  2. Step 2: Convert to fraction form
    7,213.68/10,824.57 = 3,318.39/x
  3. Step 3: Cross multiply
    7,213.68x = 10,824.57 × 3,318.39
  4. Step 4: Simplify right side
    7,213.68x = 35,920,144.84
  5. Step 5: Solve for x
    x = 35,920,144.84/7,213.68
  6. Step 6: Final answer
    x = 4,979.45

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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.