Home / 15,623.98-21,561.10-8,550.44

Finding the Fourth Proportional to 15,623.98, 21,561.10 and 8,550.44

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Solution

The fourth proportional to 15,623.98, 21,561.10 and 8,550.44 is: 11,799.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,623.98 : 21,561.10 = 8,550.44 : x
  2. Step 2: Convert to fraction form
    15,623.98/21,561.10 = 8,550.44/x
  3. Step 3: Cross multiply
    15,623.98x = 21,561.10 × 8,550.44
  4. Step 4: Simplify right side
    15,623.98x = 184,356,891.88
  5. Step 5: Solve for x
    x = 184,356,891.88/15,623.98
  6. Step 6: Final answer
    x = 11,799.61

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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.