Home / 18,789.89-25,923.60-10,717.74

Finding the Fourth Proportional to 18,789.89, 25,923.60 and 10,717.74

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Solution

The fourth proportional to 18,789.89, 25,923.60 and 10,717.74 is: 14,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.89 : 25,923.60 = 10,717.74 : x
  2. Step 2: Convert to fraction form
    18,789.89/25,923.60 = 10,717.74/x
  3. Step 3: Cross multiply
    18,789.89x = 25,923.60 × 10,717.74
  4. Step 4: Simplify right side
    18,789.89x = 277,842,404.66
  5. Step 5: Solve for x
    x = 277,842,404.66/18,789.89
  6. Step 6: Final answer
    x = 14,786.81

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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.