Home / 18,961.48-26,169.17-11,411.74

Finding the Fourth Proportional to 18,961.48, 26,169.17 and 11,411.74

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Solution

The fourth proportional to 18,961.48, 26,169.17 and 11,411.74 is: 15,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.48 : 26,169.17 = 11,411.74 : x
  2. Step 2: Convert to fraction form
    18,961.48/26,169.17 = 11,411.74/x
  3. Step 3: Cross multiply
    18,961.48x = 26,169.17 × 11,411.74
  4. Step 4: Simplify right side
    18,961.48x = 298,635,764.06
  5. Step 5: Solve for x
    x = 298,635,764.06/18,961.48
  6. Step 6: Final answer
    x = 15,749.60

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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.