Home / 12,514.48-18,771.36-3,154.48

Finding the Fourth Proportional to 12,514.48, 18,771.36 and 3,154.48

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Solution

The fourth proportional to 12,514.48, 18,771.36 and 3,154.48 is: 4,731.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,514.48 : 18,771.36 = 3,154.48 : x
  2. Step 2: Convert to fraction form
    12,514.48/18,771.36 = 3,154.48/x
  3. Step 3: Cross multiply
    12,514.48x = 18,771.36 × 3,154.48
  4. Step 4: Simplify right side
    12,514.48x = 59,213,879.69
  5. Step 5: Solve for x
    x = 59,213,879.69/12,514.48
  6. Step 6: Final answer
    x = 4,731.63

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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.