Home / 11,581.64-15,982.64-6,276.44

Finding the Fourth Proportional to 11,581.64, 15,982.64 and 6,276.44

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Solution

The fourth proportional to 11,581.64, 15,982.64 and 6,276.44 is: 8,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.64 : 15,982.64 = 6,276.44 : x
  2. Step 2: Convert to fraction form
    11,581.64/15,982.64 = 6,276.44/x
  3. Step 3: Cross multiply
    11,581.64x = 15,982.64 × 6,276.44
  4. Step 4: Simplify right side
    11,581.64x = 100,314,081.00
  5. Step 5: Solve for x
    x = 100,314,081.00/11,581.64
  6. Step 6: Final answer
    x = 8,661.47

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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.