Home / 11,456.40-17,168.20-6,515.60

Finding the Fourth Proportional to 11,456.40, 17,168.20 and 6,515.60

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Solution

The fourth proportional to 11,456.40, 17,168.20 and 6,515.60 is: 9,764.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,456.40 : 17,168.20 = 6,515.60 : x
  2. Step 2: Convert to fraction form
    11,456.40/17,168.20 = 6,515.60/x
  3. Step 3: Cross multiply
    11,456.40x = 17,168.20 × 6,515.60
  4. Step 4: Simplify right side
    11,456.40x = 111,861,123.92
  5. Step 5: Solve for x
    x = 111,861,123.92/11,456.40
  6. Step 6: Final answer
    x = 9,764.07

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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.