Home / 14,218.56-21,327.96-5,451.39

Finding the Fourth Proportional to 14,218.56, 21,327.96 and 5,451.39

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Solution

The fourth proportional to 14,218.56, 21,327.96 and 5,451.39 is: 8,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.56 : 21,327.96 = 5,451.39 : x
  2. Step 2: Convert to fraction form
    14,218.56/21,327.96 = 5,451.39/x
  3. Step 3: Cross multiply
    14,218.56x = 21,327.96 × 5,451.39
  4. Step 4: Simplify right side
    14,218.56x = 116,267,027.86
  5. Step 5: Solve for x
    x = 116,267,027.86/14,218.56
  6. Step 6: Final answer
    x = 8,177.13

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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.