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Finding the Fourth Proportional to 8,664.08, 13,058.01 and 8,181.23

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Solution

The fourth proportional to 8,664.08, 13,058.01 and 8,181.23 is: 12,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.08 : 13,058.01 = 8,181.23 : x
  2. Step 2: Convert to fraction form
    8,664.08/13,058.01 = 8,181.23/x
  3. Step 3: Cross multiply
    8,664.08x = 13,058.01 × 8,181.23
  4. Step 4: Simplify right side
    8,664.08x = 106,830,517.86
  5. Step 5: Solve for x
    x = 106,830,517.86/8,664.08
  6. Step 6: Final answer
    x = 12,330.29

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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.