Home / 11,687.33-16,128.29-6,382.19

Finding the Fourth Proportional to 11,687.33, 16,128.29 and 6,382.19

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Solution

The fourth proportional to 11,687.33, 16,128.29 and 6,382.19 is: 8,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.33 : 16,128.29 = 6,382.19 : x
  2. Step 2: Convert to fraction form
    11,687.33/16,128.29 = 6,382.19/x
  3. Step 3: Cross multiply
    11,687.33x = 16,128.29 × 6,382.19
  4. Step 4: Simplify right side
    11,687.33x = 102,933,867.43
  5. Step 5: Solve for x
    x = 102,933,867.43/11,687.33
  6. Step 6: Final answer
    x = 8,807.30

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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.