Home / 11,489.48-17,220.31-5,240.93

Finding the Fourth Proportional to 11,489.48, 17,220.31 and 5,240.93

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Solution

The fourth proportional to 11,489.48, 17,220.31 and 5,240.93 is: 7,855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.48 : 17,220.31 = 5,240.93 : x
  2. Step 2: Convert to fraction form
    11,489.48/17,220.31 = 5,240.93/x
  3. Step 3: Cross multiply
    11,489.48x = 17,220.31 × 5,240.93
  4. Step 4: Simplify right side
    11,489.48x = 90,250,439.29
  5. Step 5: Solve for x
    x = 90,250,439.29/11,489.48
  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.