Home / 10,992.72-15,165.60-6,514.80

Finding the Fourth Proportional to 10,992.72, 15,165.60 and 6,514.80

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Solution

The fourth proportional to 10,992.72, 15,165.60 and 6,514.80 is: 8,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.72 : 15,165.60 = 6,514.80 : x
  2. Step 2: Convert to fraction form
    10,992.72/15,165.60 = 6,514.80/x
  3. Step 3: Cross multiply
    10,992.72x = 15,165.60 × 6,514.80
  4. Step 4: Simplify right side
    10,992.72x = 98,800,850.88
  5. Step 5: Solve for x
    x = 98,800,850.88/10,992.72
  6. Step 6: Final answer
    x = 8,987.84

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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.