Home / 11,613.81-17,427.64-4,218.85

Finding the Fourth Proportional to 11,613.81, 17,427.64 and 4,218.85

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Solution

The fourth proportional to 11,613.81, 17,427.64 and 4,218.85 is: 6,330.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,613.81 : 17,427.64 = 4,218.85 : x
  2. Step 2: Convert to fraction form
    11,613.81/17,427.64 = 4,218.85/x
  3. Step 3: Cross multiply
    11,613.81x = 17,427.64 × 4,218.85
  4. Step 4: Simplify right side
    11,613.81x = 73,524,599.01
  5. Step 5: Solve for x
    x = 73,524,599.01/11,613.81
  6. Step 6: Final answer
    x = 6,330.79

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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.