Home / 11,967.68-16,522.78-7,720.27

Finding the Fourth Proportional to 11,967.68, 16,522.78 and 7,720.27

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Solution

The fourth proportional to 11,967.68, 16,522.78 and 7,720.27 is: 10,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,967.68 : 16,522.78 = 7,720.27 : x
  2. Step 2: Convert to fraction form
    11,967.68/16,522.78 = 7,720.27/x
  3. Step 3: Cross multiply
    11,967.68x = 16,522.78 × 7,720.27
  4. Step 4: Simplify right side
    11,967.68x = 127,560,322.75
  5. Step 5: Solve for x
    x = 127,560,322.75/11,967.68
  6. Step 6: Final answer
    x = 10,658.73

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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.