Home / 9,221.84-12,722.64-5,240.96

Finding the Fourth Proportional to 9,221.84, 12,722.64 and 5,240.96

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Solution

The fourth proportional to 9,221.84, 12,722.64 and 5,240.96 is: 7,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.84 : 12,722.64 = 5,240.96 : x
  2. Step 2: Convert to fraction form
    9,221.84/12,722.64 = 5,240.96/x
  3. Step 3: Cross multiply
    9,221.84x = 12,722.64 × 5,240.96
  4. Step 4: Simplify right side
    9,221.84x = 66,678,847.33
  5. Step 5: Solve for x
    x = 66,678,847.33/9,221.84
  6. Step 6: Final answer
    x = 7,230.54

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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.