Home / 12,581.28-18,858.96-6,736.32

Finding the Fourth Proportional to 12,581.28, 18,858.96 and 6,736.32

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Solution

The fourth proportional to 12,581.28, 18,858.96 and 6,736.32 is: 10,097.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.28 : 18,858.96 = 6,736.32 : x
  2. Step 2: Convert to fraction form
    12,581.28/18,858.96 = 6,736.32/x
  3. Step 3: Cross multiply
    12,581.28x = 18,858.96 × 6,736.32
  4. Step 4: Simplify right side
    12,581.28x = 127,039,989.43
  5. Step 5: Solve for x
    x = 127,039,989.43/12,581.28
  6. Step 6: Final answer
    x = 10,097.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.