Home / 8,520.96-11,756.24-6,722.76

Finding the Fourth Proportional to 8,520.96, 11,756.24 and 6,722.76

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Solution

The fourth proportional to 8,520.96, 11,756.24 and 6,722.76 is: 9,275.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.96 : 11,756.24 = 6,722.76 : x
  2. Step 2: Convert to fraction form
    8,520.96/11,756.24 = 6,722.76/x
  3. Step 3: Cross multiply
    8,520.96x = 11,756.24 × 6,722.76
  4. Step 4: Simplify right side
    8,520.96x = 79,034,415.70
  5. Step 5: Solve for x
    x = 79,034,415.70/8,520.96
  6. Step 6: Final answer
    x = 9,275.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.