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Finding the Fourth Proportional to 8,058.60, 12,087.90 and 6,892.20

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Solution

The fourth proportional to 8,058.60, 12,087.90 and 6,892.20 is: 10,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,058.60 : 12,087.90 = 6,892.20 : x
  2. Step 2: Convert to fraction form
    8,058.60/12,087.90 = 6,892.20/x
  3. Step 3: Cross multiply
    8,058.60x = 12,087.90 × 6,892.20
  4. Step 4: Simplify right side
    8,058.60x = 83,312,224.38
  5. Step 5: Solve for x
    x = 83,312,224.38/8,058.60
  6. Step 6: Final answer
    x = 10,338.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.