Home / 11,025.20-15,216.10-6,309.38

Finding the Fourth Proportional to 11,025.20, 15,216.10 and 6,309.38

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Solution

The fourth proportional to 11,025.20, 15,216.10 and 6,309.38 is: 8,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,025.20 : 15,216.10 = 6,309.38 : x
  2. Step 2: Convert to fraction form
    11,025.20/15,216.10 = 6,309.38/x
  3. Step 3: Cross multiply
    11,025.20x = 15,216.10 × 6,309.38
  4. Step 4: Simplify right side
    11,025.20x = 96,004,065.16
  5. Step 5: Solve for x
    x = 96,004,065.16/11,025.20
  6. Step 6: Final answer
    x = 8,707.70

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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.