Home / 7,412.73-10,249.26-6,478.56

Finding the Fourth Proportional to 7,412.73, 10,249.26 and 6,478.56

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Solution

The fourth proportional to 7,412.73, 10,249.26 and 6,478.56 is: 8,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.73 : 10,249.26 = 6,478.56 : x
  2. Step 2: Convert to fraction form
    7,412.73/10,249.26 = 6,478.56/x
  3. Step 3: Cross multiply
    7,412.73x = 10,249.26 × 6,478.56
  4. Step 4: Simplify right side
    7,412.73x = 66,400,422.90
  5. Step 5: Solve for x
    x = 66,400,422.90/7,412.73
  6. Step 6: Final answer
    x = 8,957.62

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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.