Home / 8,213.54-12,317.10-2,665.55

Finding the Fourth Proportional to 8,213.54, 12,317.10 and 2,665.55

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Solution

The fourth proportional to 8,213.54, 12,317.10 and 2,665.55 is: 3,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.54 : 12,317.10 = 2,665.55 : x
  2. Step 2: Convert to fraction form
    8,213.54/12,317.10 = 2,665.55/x
  3. Step 3: Cross multiply
    8,213.54x = 12,317.10 × 2,665.55
  4. Step 4: Simplify right side
    8,213.54x = 32,831,784.32
  5. Step 5: Solve for x
    x = 32,831,784.32/8,213.54
  6. Step 6: Final answer
    x = 3,997.28

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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.