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Finding the Fourth Proportional to 8,794.84, 12,127.74 and 7,540.12

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Solution

The fourth proportional to 8,794.84, 12,127.74 and 7,540.12 is: 10,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794.84 : 12,127.74 = 7,540.12 : x
  2. Step 2: Convert to fraction form
    8,794.84/12,127.74 = 7,540.12/x
  3. Step 3: Cross multiply
    8,794.84x = 12,127.74 × 7,540.12
  4. Step 4: Simplify right side
    8,794.84x = 91,444,614.93
  5. Step 5: Solve for x
    x = 91,444,614.93/8,794.84
  6. Step 6: Final answer
    x = 10,397.53

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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.