Home / 19,156.80-26,425.62-11,991.54

Finding the Fourth Proportional to 19,156.80, 26,425.62 and 11,991.54

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Solution

The fourth proportional to 19,156.80, 26,425.62 and 11,991.54 is: 16,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.80 : 26,425.62 = 11,991.54 : x
  2. Step 2: Convert to fraction form
    19,156.80/26,425.62 = 11,991.54/x
  3. Step 3: Cross multiply
    19,156.80x = 26,425.62 × 11,991.54
  4. Step 4: Simplify right side
    19,156.80x = 316,883,879.25
  5. Step 5: Solve for x
    x = 316,883,879.25/19,156.80
  6. Step 6: Final answer
    x = 16,541.59

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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.