Home / 8,266.46-11,399.87-5,428.82

Finding the Fourth Proportional to 8,266.46, 11,399.87 and 5,428.82

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Solution

The fourth proportional to 8,266.46, 11,399.87 and 5,428.82 is: 7,486.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.46 : 11,399.87 = 5,428.82 : x
  2. Step 2: Convert to fraction form
    8,266.46/11,399.87 = 5,428.82/x
  3. Step 3: Cross multiply
    8,266.46x = 11,399.87 × 5,428.82
  4. Step 4: Simplify right side
    8,266.46x = 61,887,884.33
  5. Step 5: Solve for x
    x = 61,887,884.33/8,266.46
  6. Step 6: Final answer
    x = 7,486.63

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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.