Home / 11,142.92-15,377.02-6,107

Finding the Fourth Proportional to 11,142.92, 15,377.02 and 6,107

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Solution

The fourth proportional to 11,142.92, 15,377.02 and 6,107 is: 8,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.92 : 15,377.02 = 6,107 : x
  2. Step 2: Convert to fraction form
    11,142.92/15,377.02 = 6,107/x
  3. Step 3: Cross multiply
    11,142.92x = 15,377.02 × 6,107
  4. Step 4: Simplify right side
    11,142.92x = 93,907,461.14
  5. Step 5: Solve for x
    x = 93,907,461.14/11,142.92
  6. Step 6: Final answer
    x = 8,427.55

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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.