Home / 15,872.44-21,904.73-8,798.86

Finding the Fourth Proportional to 15,872.44, 21,904.73 and 8,798.86

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Solution

The fourth proportional to 15,872.44, 21,904.73 and 8,798.86 is: 12,142.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.44 : 21,904.73 = 8,798.86 : x
  2. Step 2: Convert to fraction form
    15,872.44/21,904.73 = 8,798.86/x
  3. Step 3: Cross multiply
    15,872.44x = 21,904.73 × 8,798.86
  4. Step 4: Simplify right side
    15,872.44x = 192,736,553.85
  5. Step 5: Solve for x
    x = 192,736,553.85/15,872.44
  6. Step 6: Final answer
    x = 12,142.85

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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.