Home / 16,219.34-22,370.87-12,399.61

Finding the Fourth Proportional to 16,219.34, 22,370.87 and 12,399.61

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Solution

The fourth proportional to 16,219.34, 22,370.87 and 12,399.61 is: 17,102.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,219.34 : 22,370.87 = 12,399.61 : x
  2. Step 2: Convert to fraction form
    16,219.34/22,370.87 = 12,399.61/x
  3. Step 3: Cross multiply
    16,219.34x = 22,370.87 × 12,399.61
  4. Step 4: Simplify right side
    16,219.34x = 277,390,063.36
  5. Step 5: Solve for x
    x = 277,390,063.36/16,219.34
  6. Step 6: Final answer
    x = 17,102.43

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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.