Home / 8,651.20-11,940.17-8,256.77

Finding the Fourth Proportional to 8,651.20, 11,940.17 and 8,256.77

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Solution

The fourth proportional to 8,651.20, 11,940.17 and 8,256.77 is: 11,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.20 : 11,940.17 = 8,256.77 : x
  2. Step 2: Convert to fraction form
    8,651.20/11,940.17 = 8,256.77/x
  3. Step 3: Cross multiply
    8,651.20x = 11,940.17 × 8,256.77
  4. Step 4: Simplify right side
    8,651.20x = 98,587,228.24
  5. Step 5: Solve for x
    x = 98,587,228.24/8,651.20
  6. Step 6: Final answer
    x = 11,395.79

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Half scale
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Double scale
Find fourth proportional to 8,652.20, 11,941.55 and 8,257.77
Similar ratio
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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.