Home / 7,521.21-10,378.25-4,163.18

Finding the Fourth Proportional to 7,521.21, 10,378.25 and 4,163.18

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Solution

The fourth proportional to 7,521.21, 10,378.25 and 4,163.18 is: 5,744.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.21 : 10,378.25 = 4,163.18 : x
  2. Step 2: Convert to fraction form
    7,521.21/10,378.25 = 4,163.18/x
  3. Step 3: Cross multiply
    7,521.21x = 10,378.25 × 4,163.18
  4. Step 4: Simplify right side
    7,521.21x = 43,206,450.13
  5. Step 5: Solve for x
    x = 43,206,450.13/7,521.21
  6. Step 6: Final answer
    x = 5,744.61

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Half scale
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Double scale
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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.