Home / 11,528.84-15,908.72-6,812.22

Finding the Fourth Proportional to 11,528.84, 15,908.72 and 6,812.22

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Solution

The fourth proportional to 11,528.84, 15,908.72 and 6,812.22 is: 9,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,528.84 : 15,908.72 = 6,812.22 : x
  2. Step 2: Convert to fraction form
    11,528.84/15,908.72 = 6,812.22/x
  3. Step 3: Cross multiply
    11,528.84x = 15,908.72 × 6,812.22
  4. Step 4: Simplify right side
    11,528.84x = 108,373,700.56
  5. Step 5: Solve for x
    x = 108,373,700.56/11,528.84
  6. Step 6: Final answer
    x = 9,400.23

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Half scale
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Double scale
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Similar ratio
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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.