Home / 15,218.82-20,995.91-9,551.66

Finding the Fourth Proportional to 15,218.82, 20,995.91 and 9,551.66

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Solution

The fourth proportional to 15,218.82, 20,995.91 and 9,551.66 is: 13,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.82 : 20,995.91 = 9,551.66 : x
  2. Step 2: Convert to fraction form
    15,218.82/20,995.91 = 9,551.66/x
  3. Step 3: Cross multiply
    15,218.82x = 20,995.91 × 9,551.66
  4. Step 4: Simplify right side
    15,218.82x = 200,545,676.79
  5. Step 5: Solve for x
    x = 200,545,676.79/15,218.82
  6. Step 6: Final answer
    x = 13,177.48

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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.