Home / 14,481.65-21,685.70-12,135.48

Finding the Fourth Proportional to 14,481.65, 21,685.70 and 12,135.48

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Solution

The fourth proportional to 14,481.65, 21,685.70 and 12,135.48 is: 18,172.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.65 : 21,685.70 = 12,135.48 : x
  2. Step 2: Convert to fraction form
    14,481.65/21,685.70 = 12,135.48/x
  3. Step 3: Cross multiply
    14,481.65x = 21,685.70 × 12,135.48
  4. Step 4: Simplify right side
    14,481.65x = 263,166,408.97
  5. Step 5: Solve for x
    x = 263,166,408.97/14,481.65
  6. Step 6: Final answer
    x = 18,172.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.