Home / 12,727.76-17,562.26-8,257.64

Finding the Fourth Proportional to 12,727.76, 17,562.26 and 8,257.64

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Solution

The fourth proportional to 12,727.76, 17,562.26 and 8,257.64 is: 11,394.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,727.76 : 17,562.26 = 8,257.64 : x
  2. Step 2: Convert to fraction form
    12,727.76/17,562.26 = 8,257.64/x
  3. Step 3: Cross multiply
    12,727.76x = 17,562.26 × 8,257.64
  4. Step 4: Simplify right side
    12,727.76x = 145,022,820.67
  5. Step 5: Solve for x
    x = 145,022,820.67/12,727.76
  6. Step 6: Final answer
    x = 11,394.21

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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.