Home / 7,610.28-11,423.63-6,391.02

Finding the Fourth Proportional to 7,610.28, 11,423.63 and 6,391.02

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Solution

The fourth proportional to 7,610.28, 11,423.63 and 6,391.02 is: 9,593.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.28 : 11,423.63 = 6,391.02 : x
  2. Step 2: Convert to fraction form
    7,610.28/11,423.63 = 6,391.02/x
  3. Step 3: Cross multiply
    7,610.28x = 11,423.63 × 6,391.02
  4. Step 4: Simplify right side
    7,610.28x = 73,008,647.80
  5. Step 5: Solve for x
    x = 73,008,647.80/7,610.28
  6. Step 6: Final answer
    x = 9,593.42

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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.