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Finding the Fourth Proportional to 7,630.30, 10,504.20 and 6,789.70

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Solution

The fourth proportional to 7,630.30, 10,504.20 and 6,789.70 is: 9,346.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,630.30 : 10,504.20 = 6,789.70 : x
  2. Step 2: Convert to fraction form
    7,630.30/10,504.20 = 6,789.70/x
  3. Step 3: Cross multiply
    7,630.30x = 10,504.20 × 6,789.70
  4. Step 4: Simplify right side
    7,630.30x = 71,320,366.74
  5. Step 5: Solve for x
    x = 71,320,366.74/7,630.30
  6. Step 6: Final answer
    x = 9,346.99

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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.