Home / 18,941.08-28,414.86-11,145.64

Finding the Fourth Proportional to 18,941.08, 28,414.86 and 11,145.64

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Solution

The fourth proportional to 18,941.08, 28,414.86 and 11,145.64 is: 16,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.08 : 28,414.86 = 11,145.64 : x
  2. Step 2: Convert to fraction form
    18,941.08/28,414.86 = 11,145.64/x
  3. Step 3: Cross multiply
    18,941.08x = 28,414.86 × 11,145.64
  4. Step 4: Simplify right side
    18,941.08x = 316,701,800.21
  5. Step 5: Solve for x
    x = 316,701,800.21/18,941.08
  6. Step 6: Final answer
    x = 16,720.37

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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.