Home / 11,215.87-15,477.82-6,179.97

Finding the Fourth Proportional to 11,215.87, 15,477.82 and 6,179.97

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Solution

The fourth proportional to 11,215.87, 15,477.82 and 6,179.97 is: 8,528.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.87 : 15,477.82 = 6,179.97 : x
  2. Step 2: Convert to fraction form
    11,215.87/15,477.82 = 6,179.97/x
  3. Step 3: Cross multiply
    11,215.87x = 15,477.82 × 6,179.97
  4. Step 4: Simplify right side
    11,215.87x = 95,652,463.27
  5. Step 5: Solve for x
    x = 95,652,463.27/11,215.87
  6. Step 6: Final answer
    x = 8,528.31

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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.