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Finding the Fourth Proportional to 7,025.39, 10,486.84 and 6,138.65

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Solution

The fourth proportional to 7,025.39, 10,486.84 and 6,138.65 is: 9,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,025.39 : 10,486.84 = 6,138.65 : x
  2. Step 2: Convert to fraction form
    7,025.39/10,486.84 = 6,138.65/x
  3. Step 3: Cross multiply
    7,025.39x = 10,486.84 × 6,138.65
  4. Step 4: Simplify right side
    7,025.39x = 64,375,040.37
  5. Step 5: Solve for x
    x = 64,375,040.37/7,025.39
  6. Step 6: Final answer
    x = 9,163.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.