Home / 21,198.99-29,255.06-12,125.18

Finding the Fourth Proportional to 21,198.99, 29,255.06 and 12,125.18

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Solution

The fourth proportional to 21,198.99, 29,255.06 and 12,125.18 is: 16,733.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.99 : 29,255.06 = 12,125.18 : x
  2. Step 2: Convert to fraction form
    21,198.99/29,255.06 = 12,125.18/x
  3. Step 3: Cross multiply
    21,198.99x = 29,255.06 × 12,125.18
  4. Step 4: Simplify right side
    21,198.99x = 354,722,684.24
  5. Step 5: Solve for x
    x = 354,722,684.24/21,198.99
  6. Step 6: Final answer
    x = 16,733.00

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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.