Home / 21,198.95-29,254.90-11,767.52

Finding the Fourth Proportional to 21,198.95, 29,254.90 and 11,767.52

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Solution

The fourth proportional to 21,198.95, 29,254.90 and 11,767.52 is: 16,239.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.95 : 29,254.90 = 11,767.52 : x
  2. Step 2: Convert to fraction form
    21,198.95/29,254.90 = 11,767.52/x
  3. Step 3: Cross multiply
    21,198.95x = 29,254.90 × 11,767.52
  4. Step 4: Simplify right side
    21,198.95x = 344,257,620.85
  5. Step 5: Solve for x
    x = 344,257,620.85/21,198.95
  6. Step 6: Final answer
    x = 16,239.37

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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.