Home / 11,812.29-16,284.63-8,449.23

Finding the Fourth Proportional to 11,812.29, 16,284.63 and 8,449.23

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Solution

The fourth proportional to 11,812.29, 16,284.63 and 8,449.23 is: 11,648.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.29 : 16,284.63 = 8,449.23 : x
  2. Step 2: Convert to fraction form
    11,812.29/16,284.63 = 8,449.23/x
  3. Step 3: Cross multiply
    11,812.29x = 16,284.63 × 8,449.23
  4. Step 4: Simplify right side
    11,812.29x = 137,592,584.33
  5. Step 5: Solve for x
    x = 137,592,584.33/11,812.29
  6. Step 6: Final answer
    x = 11,648.26

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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.