Home / 18,941.76-26,128.93-11,855.88

Finding the Fourth Proportional to 18,941.76, 26,128.93 and 11,855.88

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Solution

The fourth proportional to 18,941.76, 26,128.93 and 11,855.88 is: 16,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.76 : 26,128.93 = 11,855.88 : x
  2. Step 2: Convert to fraction form
    18,941.76/26,128.93 = 11,855.88/x
  3. Step 3: Cross multiply
    18,941.76x = 26,128.93 × 11,855.88
  4. Step 4: Simplify right side
    18,941.76x = 309,781,399.33
  5. Step 5: Solve for x
    x = 309,781,399.33/18,941.76
  6. Step 6: Final answer
    x = 16,354.41

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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.