Home / 11,899.29-16,421.75-6,863.42

Finding the Fourth Proportional to 11,899.29, 16,421.75 and 6,863.42

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Solution

The fourth proportional to 11,899.29, 16,421.75 and 6,863.42 is: 9,471.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.29 : 16,421.75 = 6,863.42 : x
  2. Step 2: Convert to fraction form
    11,899.29/16,421.75 = 6,863.42/x
  3. Step 3: Cross multiply
    11,899.29x = 16,421.75 × 6,863.42
  4. Step 4: Simplify right side
    11,899.29x = 112,709,367.39
  5. Step 5: Solve for x
    x = 112,709,367.39/11,899.29
  6. Step 6: Final answer
    x = 9,471.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.