Home / 15,983.96-22,058.15-8,909.61

Finding the Fourth Proportional to 15,983.96, 22,058.15 and 8,909.61

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Solution

The fourth proportional to 15,983.96, 22,058.15 and 8,909.61 is: 12,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,983.96 : 22,058.15 = 8,909.61 : x
  2. Step 2: Convert to fraction form
    15,983.96/22,058.15 = 8,909.61/x
  3. Step 3: Cross multiply
    15,983.96x = 22,058.15 × 8,909.61
  4. Step 4: Simplify right side
    15,983.96x = 196,529,469.27
  5. Step 5: Solve for x
    x = 196,529,469.27/15,983.96
  6. Step 6: Final answer
    x = 12,295.42

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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.