Home / 14,255.20-19,644.96-12,388.96

Finding the Fourth Proportional to 14,255.20, 19,644.96 and 12,388.96

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Solution

The fourth proportional to 14,255.20, 19,644.96 and 12,388.96 is: 17,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.20 : 19,644.96 = 12,388.96 : x
  2. Step 2: Convert to fraction form
    14,255.20/19,644.96 = 12,388.96/x
  3. Step 3: Cross multiply
    14,255.20x = 19,644.96 × 12,388.96
  4. Step 4: Simplify right side
    14,255.20x = 243,380,623.64
  5. Step 5: Solve for x
    x = 243,380,623.64/14,255.20
  6. Step 6: Final answer
    x = 17,073.11

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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.