Home / 18,379.56-25,369.57-10,427.07

Finding the Fourth Proportional to 18,379.56, 25,369.57 and 10,427.07

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Solution

The fourth proportional to 18,379.56, 25,369.57 and 10,427.07 is: 14,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.56 : 25,369.57 = 10,427.07 : x
  2. Step 2: Convert to fraction form
    18,379.56/25,369.57 = 10,427.07/x
  3. Step 3: Cross multiply
    18,379.56x = 25,369.57 × 10,427.07
  4. Step 4: Simplify right side
    18,379.56x = 264,530,129.34
  5. Step 5: Solve for x
    x = 264,530,129.34/18,379.56
  6. Step 6: Final answer
    x = 14,392.63

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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.