Home / 18,291.86-27,438.80-5,810.97

Finding the Fourth Proportional to 18,291.86, 27,438.80 and 5,810.97

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Solution

The fourth proportional to 18,291.86, 27,438.80 and 5,810.97 is: 8,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.86 : 27,438.80 = 5,810.97 : x
  2. Step 2: Convert to fraction form
    18,291.86/27,438.80 = 5,810.97/x
  3. Step 3: Cross multiply
    18,291.86x = 27,438.80 × 5,810.97
  4. Step 4: Simplify right side
    18,291.86x = 159,446,014.58
  5. Step 5: Solve for x
    x = 159,446,014.58/18,291.86
  6. Step 6: Final answer
    x = 8,716.78

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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.