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Finding the Fourth Proportional to 6,336.80, 9,505.20 and 5,680.70

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Solution

The fourth proportional to 6,336.80, 9,505.20 and 5,680.70 is: 8,521.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,336.80 : 9,505.20 = 5,680.70 : x
  2. Step 2: Convert to fraction form
    6,336.80/9,505.20 = 5,680.70/x
  3. Step 3: Cross multiply
    6,336.80x = 9,505.20 × 5,680.70
  4. Step 4: Simplify right side
    6,336.80x = 53,996,189.64
  5. Step 5: Solve for x
    x = 53,996,189.64/6,336.80
  6. Step 6: Final answer
    x = 8,521.05

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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.