Home / 11,390.68-17,084.40-5,157.73

Finding the Fourth Proportional to 11,390.68, 17,084.40 and 5,157.73

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Solution

The fourth proportional to 11,390.68, 17,084.40 and 5,157.73 is: 7,735.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.68 : 17,084.40 = 5,157.73 : x
  2. Step 2: Convert to fraction form
    11,390.68/17,084.40 = 5,157.73/x
  3. Step 3: Cross multiply
    11,390.68x = 17,084.40 × 5,157.73
  4. Step 4: Simplify right side
    11,390.68x = 88,116,722.41
  5. Step 5: Solve for x
    x = 88,116,722.41/11,390.68
  6. Step 6: Final answer
    x = 7,735.86

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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.