Home / 18,977.44-26,188.77-11,021.62

Finding the Fourth Proportional to 18,977.44, 26,188.77 and 11,021.62

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Solution

The fourth proportional to 18,977.44, 26,188.77 and 11,021.62 is: 15,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.44 : 26,188.77 = 11,021.62 : x
  2. Step 2: Convert to fraction form
    18,977.44/26,188.77 = 11,021.62/x
  3. Step 3: Cross multiply
    18,977.44x = 26,188.77 × 11,021.62
  4. Step 4: Simplify right side
    18,977.44x = 288,642,671.21
  5. Step 5: Solve for x
    x = 288,642,671.21/18,977.44
  6. Step 6: Final answer
    x = 15,209.78

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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.