Home / 11,371.20-17,056.80-7,684.80

Finding the Fourth Proportional to 11,371.20, 17,056.80 and 7,684.80

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Solution

The fourth proportional to 11,371.20, 17,056.80 and 7,684.80 is: 11,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,371.20 : 17,056.80 = 7,684.80 : x
  2. Step 2: Convert to fraction form
    11,371.20/17,056.80 = 7,684.80/x
  3. Step 3: Cross multiply
    11,371.20x = 17,056.80 × 7,684.80
  4. Step 4: Simplify right side
    11,371.20x = 131,078,096.64
  5. Step 5: Solve for x
    x = 131,078,096.64/11,371.20
  6. Step 6: Final answer
    x = 11,527.20

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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.