Home / 8,517.21-11,753.40-4,740.31

Finding the Fourth Proportional to 8,517.21, 11,753.40 and 4,740.31

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Solution

The fourth proportional to 8,517.21, 11,753.40 and 4,740.31 is: 6,541.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.21 : 11,753.40 = 4,740.31 : x
  2. Step 2: Convert to fraction form
    8,517.21/11,753.40 = 4,740.31/x
  3. Step 3: Cross multiply
    8,517.21x = 11,753.40 × 4,740.31
  4. Step 4: Simplify right side
    8,517.21x = 55,714,759.55
  5. Step 5: Solve for x
    x = 55,714,759.55/8,517.21
  6. Step 6: Final answer
    x = 6,541.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.