Home / 10,517.76-14,515.20-6,796.80

Finding the Fourth Proportional to 10,517.76, 14,515.20 and 6,796.80

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Solution

The fourth proportional to 10,517.76, 14,515.20 and 6,796.80 is: 9,380.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.76 : 14,515.20 = 6,796.80 : x
  2. Step 2: Convert to fraction form
    10,517.76/14,515.20 = 6,796.80/x
  3. Step 3: Cross multiply
    10,517.76x = 14,515.20 × 6,796.80
  4. Step 4: Simplify right side
    10,517.76x = 98,656,911.36
  5. Step 5: Solve for x
    x = 98,656,911.36/10,517.76
  6. Step 6: Final answer
    x = 9,380.03

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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.