Home / 12,481.75-17,224.95-6,816.66

Finding the Fourth Proportional to 12,481.75, 17,224.95 and 6,816.66

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Solution

The fourth proportional to 12,481.75, 17,224.95 and 6,816.66 is: 9,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.75 : 17,224.95 = 6,816.66 : x
  2. Step 2: Convert to fraction form
    12,481.75/17,224.95 = 6,816.66/x
  3. Step 3: Cross multiply
    12,481.75x = 17,224.95 × 6,816.66
  4. Step 4: Simplify right side
    12,481.75x = 117,416,666.47
  5. Step 5: Solve for x
    x = 117,416,666.47/12,481.75
  6. Step 6: Final answer
    x = 9,407.07

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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.