Home / 18,139.86-27,193.32-6,450.33

Finding the Fourth Proportional to 18,139.86, 27,193.32 and 6,450.33

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Solution

The fourth proportional to 18,139.86, 27,193.32 and 6,450.33 is: 9,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.86 : 27,193.32 = 6,450.33 : x
  2. Step 2: Convert to fraction form
    18,139.86/27,193.32 = 6,450.33/x
  3. Step 3: Cross multiply
    18,139.86x = 27,193.32 × 6,450.33
  4. Step 4: Simplify right side
    18,139.86x = 175,405,887.80
  5. Step 5: Solve for x
    x = 175,405,887.80/18,139.86
  6. Step 6: Final answer
    x = 9,669.64

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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.