Home / 11,392.25-15,720.89-6,676.43

Finding the Fourth Proportional to 11,392.25, 15,720.89 and 6,676.43

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Solution

The fourth proportional to 11,392.25, 15,720.89 and 6,676.43 is: 9,213.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.25 : 15,720.89 = 6,676.43 : x
  2. Step 2: Convert to fraction form
    11,392.25/15,720.89 = 6,676.43/x
  3. Step 3: Cross multiply
    11,392.25x = 15,720.89 × 6,676.43
  4. Step 4: Simplify right side
    11,392.25x = 104,959,309.64
  5. Step 5: Solve for x
    x = 104,959,309.64/11,392.25
  6. Step 6: Final answer
    x = 9,213.22

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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.