Home / 8,172.34-12,253.48-3,489.73

Finding the Fourth Proportional to 8,172.34, 12,253.48 and 3,489.73

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Solution

The fourth proportional to 8,172.34, 12,253.48 and 3,489.73 is: 5,232.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.34 : 12,253.48 = 3,489.73 : x
  2. Step 2: Convert to fraction form
    8,172.34/12,253.48 = 3,489.73/x
  3. Step 3: Cross multiply
    8,172.34x = 12,253.48 × 3,489.73
  4. Step 4: Simplify right side
    8,172.34x = 42,761,366.33
  5. Step 5: Solve for x
    x = 42,761,366.33/8,172.34
  6. Step 6: Final answer
    x = 5,232.45

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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.