Home / 11,138.72-15,371.18-6,293.00

Finding the Fourth Proportional to 11,138.72, 15,371.18 and 6,293.00

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Solution

The fourth proportional to 11,138.72, 15,371.18 and 6,293.00 is: 8,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.72 : 15,371.18 = 6,293.00 : x
  2. Step 2: Convert to fraction form
    11,138.72/15,371.18 = 6,293.00/x
  3. Step 3: Cross multiply
    11,138.72x = 15,371.18 × 6,293.00
  4. Step 4: Simplify right side
    11,138.72x = 96,730,815.24
  5. Step 5: Solve for x
    x = 96,730,815.24/11,138.72
  6. Step 6: Final answer
    x = 8,684.19

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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.