Home / 11,216.90-15,479.82-6,742.73

Finding the Fourth Proportional to 11,216.90, 15,479.82 and 6,742.73

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Solution

The fourth proportional to 11,216.90, 15,479.82 and 6,742.73 is: 9,305.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.90 : 15,479.82 = 6,742.73 : x
  2. Step 2: Convert to fraction form
    11,216.90/15,479.82 = 6,742.73/x
  3. Step 3: Cross multiply
    11,216.90x = 15,479.82 × 6,742.73
  4. Step 4: Simplify right side
    11,216.90x = 104,376,169.31
  5. Step 5: Solve for x
    x = 104,376,169.31/11,216.90
  6. Step 6: Final answer
    x = 9,305.26

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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.