Home / 18,794.64-28,204.77-12,131.13

Finding the Fourth Proportional to 18,794.64, 28,204.77 and 12,131.13

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Solution

The fourth proportional to 18,794.64, 28,204.77 and 12,131.13 is: 18,204.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.64 : 28,204.77 = 12,131.13 : x
  2. Step 2: Convert to fraction form
    18,794.64/28,204.77 = 12,131.13/x
  3. Step 3: Cross multiply
    18,794.64x = 28,204.77 × 12,131.13
  4. Step 4: Simplify right side
    18,794.64x = 342,155,731.49
  5. Step 5: Solve for x
    x = 342,155,731.49/18,794.64
  6. Step 6: Final answer
    x = 18,204.96

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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.