Home / 13,922.32-19,201.94-8,620.06

Finding the Fourth Proportional to 13,922.32, 19,201.94 and 8,620.06

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Solution

The fourth proportional to 13,922.32, 19,201.94 and 8,620.06 is: 11,888.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.32 : 19,201.94 = 8,620.06 : x
  2. Step 2: Convert to fraction form
    13,922.32/19,201.94 = 8,620.06/x
  3. Step 3: Cross multiply
    13,922.32x = 19,201.94 × 8,620.06
  4. Step 4: Simplify right side
    13,922.32x = 165,521,874.92
  5. Step 5: Solve for x
    x = 165,521,874.92/13,922.32
  6. Step 6: Final answer
    x = 11,888.96

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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.