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Finding the Fourth Proportional to 13,674.79, 20,514.22 and 4,313.82

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Solution

The fourth proportional to 13,674.79, 20,514.22 and 4,313.82 is: 6,471.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.79 : 20,514.22 = 4,313.82 : x
  2. Step 2: Convert to fraction form
    13,674.79/20,514.22 = 4,313.82/x
  3. Step 3: Cross multiply
    13,674.79x = 20,514.22 × 4,313.82
  4. Step 4: Simplify right side
    13,674.79x = 88,494,641.74
  5. Step 5: Solve for x
    x = 88,494,641.74/13,674.79
  6. Step 6: Final answer
    x = 6,471.37

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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.