Home / 9,219.82-12,723.24-5,240.68

Finding the Fourth Proportional to 9,219.82, 12,723.24 and 5,240.68

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Solution

The fourth proportional to 9,219.82, 12,723.24 and 5,240.68 is: 7,232.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.82 : 12,723.24 = 5,240.68 : x
  2. Step 2: Convert to fraction form
    9,219.82/12,723.24 = 5,240.68/x
  3. Step 3: Cross multiply
    9,219.82x = 12,723.24 × 5,240.68
  4. Step 4: Simplify right side
    9,219.82x = 66,678,381.69
  5. Step 5: Solve for x
    x = 66,678,381.69/9,219.82
  6. Step 6: Final answer
    x = 7,232.07

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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.