Home / 12,338.76-18,514.22-5,765.40

Finding the Fourth Proportional to 12,338.76, 18,514.22 and 5,765.40

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Solution

The fourth proportional to 12,338.76, 18,514.22 and 5,765.40 is: 8,650.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.76 : 18,514.22 = 5,765.40 : x
  2. Step 2: Convert to fraction form
    12,338.76/18,514.22 = 5,765.40/x
  3. Step 3: Cross multiply
    12,338.76x = 18,514.22 × 5,765.40
  4. Step 4: Simplify right side
    12,338.76x = 106,741,883.99
  5. Step 5: Solve for x
    x = 106,741,883.99/12,338.76
  6. Step 6: Final answer
    x = 8,650.94

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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.