Home / 15,655.97-21,625.94-11,670.16

Finding the Fourth Proportional to 15,655.97, 21,625.94 and 11,670.16

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Solution

The fourth proportional to 15,655.97, 21,625.94 and 11,670.16 is: 16,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.97 : 21,625.94 = 11,670.16 : x
  2. Step 2: Convert to fraction form
    15,655.97/21,625.94 = 11,670.16/x
  3. Step 3: Cross multiply
    15,655.97x = 21,625.94 × 11,670.16
  4. Step 4: Simplify right side
    15,655.97x = 252,378,179.95
  5. Step 5: Solve for x
    x = 252,378,179.95/15,655.97
  6. Step 6: Final answer
    x = 16,120.25

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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.