Home / 16,212.45-22,363.11-12,429.48

Finding the Fourth Proportional to 16,212.45, 22,363.11 and 12,429.48

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Solution

The fourth proportional to 16,212.45, 22,363.11 and 12,429.48 is: 17,144.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,212.45 : 22,363.11 = 12,429.48 : x
  2. Step 2: Convert to fraction form
    16,212.45/22,363.11 = 12,429.48/x
  3. Step 3: Cross multiply
    16,212.45x = 22,363.11 × 12,429.48
  4. Step 4: Simplify right side
    16,212.45x = 277,961,828.48
  5. Step 5: Solve for x
    x = 277,961,828.48/16,212.45
  6. Step 6: Final answer
    x = 17,144.96

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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.