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Finding the Fourth Proportional to 8,807.94, 13,264.68 and 8,020.62

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Solution

The fourth proportional to 8,807.94, 13,264.68 and 8,020.62 is: 12,078.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.94 : 13,264.68 = 8,020.62 : x
  2. Step 2: Convert to fraction form
    8,807.94/13,264.68 = 8,020.62/x
  3. Step 3: Cross multiply
    8,807.94x = 13,264.68 × 8,020.62
  4. Step 4: Simplify right side
    8,807.94x = 106,390,957.70
  5. Step 5: Solve for x
    x = 106,390,957.70/8,807.94
  6. Step 6: Final answer
    x = 12,078.98

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