Home / 18,379.86-25,353.72-11,301.27

Finding the Fourth Proportional to 18,379.86, 25,353.72 and 11,301.27

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Solution

The fourth proportional to 18,379.86, 25,353.72 and 11,301.27 is: 15,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.86 : 25,353.72 = 11,301.27 : x
  2. Step 2: Convert to fraction form
    18,379.86/25,353.72 = 11,301.27/x
  3. Step 3: Cross multiply
    18,379.86x = 25,353.72 × 11,301.27
  4. Step 4: Simplify right side
    18,379.86x = 286,529,235.22
  5. Step 5: Solve for x
    x = 286,529,235.22/18,379.86
  6. Step 6: Final answer
    x = 15,589.30

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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.