Home / 11,108.30-15,329.82-6,392.58

Finding the Fourth Proportional to 11,108.30, 15,329.82 and 6,392.58

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Solution

The fourth proportional to 11,108.30, 15,329.82 and 6,392.58 is: 8,821.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.30 : 15,329.82 = 6,392.58 : x
  2. Step 2: Convert to fraction form
    11,108.30/15,329.82 = 6,392.58/x
  3. Step 3: Cross multiply
    11,108.30x = 15,329.82 × 6,392.58
  4. Step 4: Simplify right side
    11,108.30x = 97,997,100.74
  5. Step 5: Solve for x
    x = 97,997,100.74/11,108.30
  6. Step 6: Final answer
    x = 8,821.97

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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.