Home / 7,213.28-10,812.12-3,507.26

Finding the Fourth Proportional to 7,213.28, 10,812.12 and 3,507.26

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Solution

The fourth proportional to 7,213.28, 10,812.12 and 3,507.26 is: 5,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.28 : 10,812.12 = 3,507.26 : x
  2. Step 2: Convert to fraction form
    7,213.28/10,812.12 = 3,507.26/x
  3. Step 3: Cross multiply
    7,213.28x = 10,812.12 × 3,507.26
  4. Step 4: Simplify right side
    7,213.28x = 37,920,915.99
  5. Step 5: Solve for x
    x = 37,920,915.99/7,213.28
  6. Step 6: Final answer
    x = 5,257.10

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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.