Home / 11,147.72-16,728.66-4,127.00

Finding the Fourth Proportional to 11,147.72, 16,728.66 and 4,127.00

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Solution

The fourth proportional to 11,147.72, 16,728.66 and 4,127.00 is: 6,193.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.72 : 16,728.66 = 4,127.00 : x
  2. Step 2: Convert to fraction form
    11,147.72/16,728.66 = 4,127.00/x
  3. Step 3: Cross multiply
    11,147.72x = 16,728.66 × 4,127.00
  4. Step 4: Simplify right side
    11,147.72x = 69,039,096.18
  5. Step 5: Solve for x
    x = 69,039,096.18/11,147.72
  6. Step 6: Final answer
    x = 6,193.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.