Home / 11,684.87-16,117.92-8,328.77

Finding the Fourth Proportional to 11,684.87, 16,117.92 and 8,328.77

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Solution

The fourth proportional to 11,684.87, 16,117.92 and 8,328.77 is: 11,488.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.87 : 16,117.92 = 8,328.77 : x
  2. Step 2: Convert to fraction form
    11,684.87/16,117.92 = 8,328.77/x
  3. Step 3: Cross multiply
    11,684.87x = 16,117.92 × 8,328.77
  4. Step 4: Simplify right side
    11,684.87x = 134,242,367.97
  5. Step 5: Solve for x
    x = 134,242,367.97/11,684.87
  6. Step 6: Final answer
    x = 11,488.57

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Half scale
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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.