Home / 11,025.38-15,215.37-6,309.38

Finding the Fourth Proportional to 11,025.38, 15,215.37 and 6,309.38

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Solution

The fourth proportional to 11,025.38, 15,215.37 and 6,309.38 is: 8,707.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,025.38 : 15,215.37 = 6,309.38 : x
  2. Step 2: Convert to fraction form
    11,025.38/15,215.37 = 6,309.38/x
  3. Step 3: Cross multiply
    11,025.38x = 15,215.37 × 6,309.38
  4. Step 4: Simplify right side
    11,025.38x = 95,999,551.17
  5. Step 5: Solve for x
    x = 95,999,551.17/11,025.38
  6. Step 6: Final answer
    x = 8,707.14

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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.