Home / 11,814.29-16,287.39-8,451.23

Finding the Fourth Proportional to 11,814.29, 16,287.39 and 8,451.23

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Solution

The fourth proportional to 11,814.29, 16,287.39 and 8,451.23 is: 11,651.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.29 : 16,287.39 = 8,451.23 : x
  2. Step 2: Convert to fraction form
    11,814.29/16,287.39 = 8,451.23/x
  3. Step 3: Cross multiply
    11,814.29x = 16,287.39 × 8,451.23
  4. Step 4: Simplify right side
    11,814.29x = 137,648,478.99
  5. Step 5: Solve for x
    x = 137,648,478.99/11,814.29
  6. Step 6: Final answer
    x = 11,651.02

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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.