Home / 11,987.08-16,542.25-6,609.71

Finding the Fourth Proportional to 11,987.08, 16,542.25 and 6,609.71

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Solution

The fourth proportional to 11,987.08, 16,542.25 and 6,609.71 is: 9,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.08 : 16,542.25 = 6,609.71 : x
  2. Step 2: Convert to fraction form
    11,987.08/16,542.25 = 6,609.71/x
  3. Step 3: Cross multiply
    11,987.08x = 16,542.25 × 6,609.71
  4. Step 4: Simplify right side
    11,987.08x = 109,339,516.60
  5. Step 5: Solve for x
    x = 109,339,516.60/11,987.08
  6. Step 6: Final answer
    x = 9,121.45

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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.