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Finding the Fourth Proportional to 7,249.80, 10,898.70 and 6,299.40

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Solution

The fourth proportional to 7,249.80, 10,898.70 and 6,299.40 is: 9,469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.80 : 10,898.70 = 6,299.40 : x
  2. Step 2: Convert to fraction form
    7,249.80/10,898.70 = 6,299.40/x
  3. Step 3: Cross multiply
    7,249.80x = 10,898.70 × 6,299.40
  4. Step 4: Simplify right side
    7,249.80x = 68,655,270.78
  5. Step 5: Solve for x
    x = 68,655,270.78/7,249.80
  6. Step 6: Final answer
    x = 9,469.95

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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.