Home / 11,079-15,290.10-6,111

Finding the Fourth Proportional to 11,079, 15,290.10 and 6,111

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Solution

The fourth proportional to 11,079, 15,290.10 and 6,111 is: 8,433.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079 : 15,290.10 = 6,111 : x
  2. Step 2: Convert to fraction form
    11,079/15,290.10 = 6,111/x
  3. Step 3: Cross multiply
    11,079x = 15,290.10 × 6,111
  4. Step 4: Simplify right side
    11,079x = 93,437,801.10
  5. Step 5: Solve for x
    x = 93,437,801.10/11,079
  6. Step 6: Final answer
    x = 8,433.78

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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.