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Finding the Fourth Proportional to 7,080.70, 10,619.64 and 6,729.46

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Solution

The fourth proportional to 7,080.70, 10,619.64 and 6,729.46 is: 10,092.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.70 : 10,619.64 = 6,729.46 : x
  2. Step 2: Convert to fraction form
    7,080.70/10,619.64 = 6,729.46/x
  3. Step 3: Cross multiply
    7,080.70x = 10,619.64 × 6,729.46
  4. Step 4: Simplify right side
    7,080.70x = 71,464,442.59
  5. Step 5: Solve for x
    x = 71,464,442.59/7,080.70
  6. Step 6: Final answer
    x = 10,092.85

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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.