Home / 11,687.06-16,128.52-6,382.28

Finding the Fourth Proportional to 11,687.06, 16,128.52 and 6,382.28

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Solution

The fourth proportional to 11,687.06, 16,128.52 and 6,382.28 is: 8,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.06 : 16,128.52 = 6,382.28 : x
  2. Step 2: Convert to fraction form
    11,687.06/16,128.52 = 6,382.28/x
  3. Step 3: Cross multiply
    11,687.06x = 16,128.52 × 6,382.28
  4. Step 4: Simplify right side
    11,687.06x = 102,936,730.63
  5. Step 5: Solve for x
    x = 102,936,730.63/11,687.06
  6. Step 6: Final answer
    x = 8,807.75

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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.