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Finding the Fourth Proportional to 8,892.45, 13,345.11 and 3,959.55

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Solution

The fourth proportional to 8,892.45, 13,345.11 and 3,959.55 is: 5,942.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,892.45 : 13,345.11 = 3,959.55 : x
  2. Step 2: Convert to fraction form
    8,892.45/13,345.11 = 3,959.55/x
  3. Step 3: Cross multiply
    8,892.45x = 13,345.11 × 3,959.55
  4. Step 4: Simplify right side
    8,892.45x = 52,840,630.30
  5. Step 5: Solve for x
    x = 52,840,630.30/8,892.45
  6. Step 6: Final answer
    x = 5,942.19

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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.