Home / 11,489.49-17,220.30-5,240.94

Finding the Fourth Proportional to 11,489.49, 17,220.30 and 5,240.94

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Solution

The fourth proportional to 11,489.49, 17,220.30 and 5,240.94 is: 7,855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.49 : 17,220.30 = 5,240.94 : x
  2. Step 2: Convert to fraction form
    11,489.49/17,220.30 = 5,240.94/x
  3. Step 3: Cross multiply
    11,489.49x = 17,220.30 × 5,240.94
  4. Step 4: Simplify right side
    11,489.49x = 90,250,559.08
  5. Step 5: Solve for x
    x = 90,250,559.08/11,489.49
  6. Step 6: Final answer
    x = 7,855.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.