Home / 10,447.80-15,668.64-5,514.75

Finding the Fourth Proportional to 10,447.80, 15,668.64 and 5,514.75

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Solution

The fourth proportional to 10,447.80, 15,668.64 and 5,514.75 is: 8,270.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.80 : 15,668.64 = 5,514.75 : x
  2. Step 2: Convert to fraction form
    10,447.80/15,668.64 = 5,514.75/x
  3. Step 3: Cross multiply
    10,447.80x = 15,668.64 × 5,514.75
  4. Step 4: Simplify right side
    10,447.80x = 86,408,632.44
  5. Step 5: Solve for x
    x = 86,408,632.44/10,447.80
  6. Step 6: Final answer
    x = 8,270.51

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1.5x scale

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.