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Finding the Fourth Proportional to 8,863.34, 13,230.14 and 7,812.44

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Solution

The fourth proportional to 8,863.34, 13,230.14 and 7,812.44 is: 11,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.34 : 13,230.14 = 7,812.44 : x
  2. Step 2: Convert to fraction form
    8,863.34/13,230.14 = 7,812.44/x
  3. Step 3: Cross multiply
    8,863.34x = 13,230.14 × 7,812.44
  4. Step 4: Simplify right side
    8,863.34x = 103,359,569.73
  5. Step 5: Solve for x
    x = 103,359,569.73/8,863.34
  6. Step 6: Final answer
    x = 11,661.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.