Home / 12,276.77-16,941.11-7,240.73

Finding the Fourth Proportional to 12,276.77, 16,941.11 and 7,240.73

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Solution

The fourth proportional to 12,276.77, 16,941.11 and 7,240.73 is: 9,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.77 : 16,941.11 = 7,240.73 : x
  2. Step 2: Convert to fraction form
    12,276.77/16,941.11 = 7,240.73/x
  3. Step 3: Cross multiply
    12,276.77x = 16,941.11 × 7,240.73
  4. Step 4: Simplify right side
    12,276.77x = 122,665,882.50
  5. Step 5: Solve for x
    x = 122,665,882.50/12,276.77
  6. Step 6: Final answer
    x = 9,991.71

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Half scale
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Double scale
Find fourth proportional to 12,277.77, 16,942.48 and 7,241.73
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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.