Home / 18,778.56-25,912.80-10,392.96

Finding the Fourth Proportional to 18,778.56, 25,912.80 and 10,392.96

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Solution

The fourth proportional to 18,778.56, 25,912.80 and 10,392.96 is: 14,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.56 : 25,912.80 = 10,392.96 : x
  2. Step 2: Convert to fraction form
    18,778.56/25,912.80 = 10,392.96/x
  3. Step 3: Cross multiply
    18,778.56x = 25,912.80 × 10,392.96
  4. Step 4: Simplify right side
    18,778.56x = 269,310,693.89
  5. Step 5: Solve for x
    x = 269,310,693.89/18,778.56
  6. Step 6: Final answer
    x = 14,341.39

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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.