Home / 11,351.43-15,664.48-6,315.26

Finding the Fourth Proportional to 11,351.43, 15,664.48 and 6,315.26

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Solution

The fourth proportional to 11,351.43, 15,664.48 and 6,315.26 is: 8,714.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.43 : 15,664.48 = 6,315.26 : x
  2. Step 2: Convert to fraction form
    11,351.43/15,664.48 = 6,315.26/x
  3. Step 3: Cross multiply
    11,351.43x = 15,664.48 × 6,315.26
  4. Step 4: Simplify right side
    11,351.43x = 98,925,169.85
  5. Step 5: Solve for x
    x = 98,925,169.85/11,351.43
  6. Step 6: Final answer
    x = 8,714.78

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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.