Home / 11,422.51-17,117.66-5,412.21

Finding the Fourth Proportional to 11,422.51, 17,117.66 and 5,412.21

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Solution

The fourth proportional to 11,422.51, 17,117.66 and 5,412.21 is: 8,110.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.51 : 17,117.66 = 5,412.21 : x
  2. Step 2: Convert to fraction form
    11,422.51/17,117.66 = 5,412.21/x
  3. Step 3: Cross multiply
    11,422.51x = 17,117.66 × 5,412.21
  4. Step 4: Simplify right side
    11,422.51x = 92,644,319.97
  5. Step 5: Solve for x
    x = 92,644,319.97/11,422.51
  6. Step 6: Final answer
    x = 8,110.68

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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.