Home / 12,800.37-17,663.66-8,020.19

Finding the Fourth Proportional to 12,800.37, 17,663.66 and 8,020.19

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Solution

The fourth proportional to 12,800.37, 17,663.66 and 8,020.19 is: 11,067.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.37 : 17,663.66 = 8,020.19 : x
  2. Step 2: Convert to fraction form
    12,800.37/17,663.66 = 8,020.19/x
  3. Step 3: Cross multiply
    12,800.37x = 17,663.66 × 8,020.19
  4. Step 4: Simplify right side
    12,800.37x = 141,665,780.88
  5. Step 5: Solve for x
    x = 141,665,780.88/12,800.37
  6. Step 6: Final answer
    x = 11,067.32

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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.