Home / 7,071.20-10,581.60-6,156.80

Finding the Fourth Proportional to 7,071.20, 10,581.60 and 6,156.80

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Solution

The fourth proportional to 7,071.20, 10,581.60 and 6,156.80 is: 9,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,071.20 : 10,581.60 = 6,156.80 : x
  2. Step 2: Convert to fraction form
    7,071.20/10,581.60 = 6,156.80/x
  3. Step 3: Cross multiply
    7,071.20x = 10,581.60 × 6,156.80
  4. Step 4: Simplify right side
    7,071.20x = 65,148,794.88
  5. Step 5: Solve for x
    x = 65,148,794.88/7,071.20
  6. Step 6: Final answer
    x = 9,213.26

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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.