Home / 7,412.46-10,221.42-4,891.26

Finding the Fourth Proportional to 7,412.46, 10,221.42 and 4,891.26

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Solution

The fourth proportional to 7,412.46, 10,221.42 and 4,891.26 is: 6,744.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.46 : 10,221.42 = 4,891.26 : x
  2. Step 2: Convert to fraction form
    7,412.46/10,221.42 = 4,891.26/x
  3. Step 3: Cross multiply
    7,412.46x = 10,221.42 × 4,891.26
  4. Step 4: Simplify right side
    7,412.46x = 49,995,622.79
  5. Step 5: Solve for x
    x = 49,995,622.79/7,412.46
  6. Step 6: Final answer
    x = 6,744.81

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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.