Home / 11,213.97-15,474.86-6,740.19

Finding the Fourth Proportional to 11,213.97, 15,474.86 and 6,740.19

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Solution

The fourth proportional to 11,213.97, 15,474.86 and 6,740.19 is: 9,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.97 : 15,474.86 = 6,740.19 : x
  2. Step 2: Convert to fraction form
    11,213.97/15,474.86 = 6,740.19/x
  3. Step 3: Cross multiply
    11,213.97x = 15,474.86 × 6,740.19
  4. Step 4: Simplify right side
    11,213.97x = 104,303,462.92
  5. Step 5: Solve for x
    x = 104,303,462.92/11,213.97
  6. Step 6: Final answer
    x = 9,301.21

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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.