Home / 9,938.20-14,891.10-7,313.80

Finding the Fourth Proportional to 9,938.20, 14,891.10 and 7,313.80

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Solution

The fourth proportional to 9,938.20, 14,891.10 and 7,313.80 is: 10,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.20 : 14,891.10 = 7,313.80 : x
  2. Step 2: Convert to fraction form
    9,938.20/14,891.10 = 7,313.80/x
  3. Step 3: Cross multiply
    9,938.20x = 14,891.10 × 7,313.80
  4. Step 4: Simplify right side
    9,938.20x = 108,910,527.18
  5. Step 5: Solve for x
    x = 108,910,527.18/9,938.20
  6. Step 6: Final answer
    x = 10,958.78

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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.