Home / 19,498.89-26,911.13-11,945.64

Finding the Fourth Proportional to 19,498.89, 26,911.13 and 11,945.64

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Solution

The fourth proportional to 19,498.89, 26,911.13 and 11,945.64 is: 16,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,498.89 : 26,911.13 = 11,945.64 : x
  2. Step 2: Convert to fraction form
    19,498.89/26,911.13 = 11,945.64/x
  3. Step 3: Cross multiply
    19,498.89x = 26,911.13 × 11,945.64
  4. Step 4: Simplify right side
    19,498.89x = 321,470,611.25
  5. Step 5: Solve for x
    x = 321,470,611.25/19,498.89
  6. Step 6: Final answer
    x = 16,486.61

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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.