Home / 12,764.46-17,608.80-8,228.86

Finding the Fourth Proportional to 12,764.46, 17,608.80 and 8,228.86

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Solution

The fourth proportional to 12,764.46, 17,608.80 and 8,228.86 is: 11,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,764.46 : 17,608.80 = 8,228.86 : x
  2. Step 2: Convert to fraction form
    12,764.46/17,608.80 = 8,228.86/x
  3. Step 3: Cross multiply
    12,764.46x = 17,608.80 × 8,228.86
  4. Step 4: Simplify right side
    12,764.46x = 144,900,349.97
  5. Step 5: Solve for x
    x = 144,900,349.97/12,764.46
  6. Step 6: Final answer
    x = 11,351.86

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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.