Home / 16,203.08-22,360.12-9,131.78

Finding the Fourth Proportional to 16,203.08, 22,360.12 and 9,131.78

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Solution

The fourth proportional to 16,203.08, 22,360.12 and 9,131.78 is: 12,601.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,203.08 : 22,360.12 = 9,131.78 : x
  2. Step 2: Convert to fraction form
    16,203.08/22,360.12 = 9,131.78/x
  3. Step 3: Cross multiply
    16,203.08x = 22,360.12 × 9,131.78
  4. Step 4: Simplify right side
    16,203.08x = 204,187,696.61
  5. Step 5: Solve for x
    x = 204,187,696.61/16,203.08
  6. Step 6: Final answer
    x = 12,601.78

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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.