Home / 12,192.22-16,821.37-7,156.35

Finding the Fourth Proportional to 12,192.22, 16,821.37 and 7,156.35

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Solution

The fourth proportional to 12,192.22, 16,821.37 and 7,156.35 is: 9,873.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.22 : 16,821.37 = 7,156.35 : x
  2. Step 2: Convert to fraction form
    12,192.22/16,821.37 = 7,156.35/x
  3. Step 3: Cross multiply
    12,192.22x = 16,821.37 × 7,156.35
  4. Step 4: Simplify right side
    12,192.22x = 120,379,620.14
  5. Step 5: Solve for x
    x = 120,379,620.14/12,192.22
  6. Step 6: Final answer
    x = 9,873.48

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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.