Home / 12,816.49-17,684.64-8,560.73

Finding the Fourth Proportional to 12,816.49, 17,684.64 and 8,560.73

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Solution

The fourth proportional to 12,816.49, 17,684.64 and 8,560.73 is: 11,812.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.49 : 17,684.64 = 8,560.73 : x
  2. Step 2: Convert to fraction form
    12,816.49/17,684.64 = 8,560.73/x
  3. Step 3: Cross multiply
    12,816.49x = 17,684.64 × 8,560.73
  4. Step 4: Simplify right side
    12,816.49x = 151,393,296.96
  5. Step 5: Solve for x
    x = 151,393,296.96/12,816.49
  6. Step 6: Final answer
    x = 11,812.38

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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.