Home / 18,789.76-25,930.70-10,406.24

Finding the Fourth Proportional to 18,789.76, 25,930.70 and 10,406.24

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Solution

The fourth proportional to 18,789.76, 25,930.70 and 10,406.24 is: 14,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.76 : 25,930.70 = 10,406.24 : x
  2. Step 2: Convert to fraction form
    18,789.76/25,930.70 = 10,406.24/x
  3. Step 3: Cross multiply
    18,789.76x = 25,930.70 × 10,406.24
  4. Step 4: Simplify right side
    18,789.76x = 269,841,087.57
  5. Step 5: Solve for x
    x = 269,841,087.57/18,789.76
  6. Step 6: Final answer
    x = 14,361.07

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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.