Home / 9,967.79-13,755.38-5,491.96

Finding the Fourth Proportional to 9,967.79, 13,755.38 and 5,491.96

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Solution

The fourth proportional to 9,967.79, 13,755.38 and 5,491.96 is: 7,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,967.79 : 13,755.38 = 5,491.96 : x
  2. Step 2: Convert to fraction form
    9,967.79/13,755.38 = 5,491.96/x
  3. Step 3: Cross multiply
    9,967.79x = 13,755.38 × 5,491.96
  4. Step 4: Simplify right side
    9,967.79x = 75,543,934.90
  5. Step 5: Solve for x
    x = 75,543,934.90/9,967.79
  6. Step 6: Final answer
    x = 7,578.80

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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.