Home / 9,089.28-12,601.08-8,768.88

Finding the Fourth Proportional to 9,089.28, 12,601.08 and 8,768.88

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Solution

The fourth proportional to 9,089.28, 12,601.08 and 8,768.88 is: 12,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,089.28 : 12,601.08 = 8,768.88 : x
  2. Step 2: Convert to fraction form
    9,089.28/12,601.08 = 8,768.88/x
  3. Step 3: Cross multiply
    9,089.28x = 12,601.08 × 8,768.88
  4. Step 4: Simplify right side
    9,089.28x = 110,497,358.39
  5. Step 5: Solve for x
    x = 110,497,358.39/9,089.28
  6. Step 6: Final answer
    x = 12,156.89

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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 (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.