Home / 18,747.35-25,871.37-10,789.57

Finding the Fourth Proportional to 18,747.35, 25,871.37 and 10,789.57

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Solution

The fourth proportional to 18,747.35, 25,871.37 and 10,789.57 is: 14,889.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.35 : 25,871.37 = 10,789.57 : x
  2. Step 2: Convert to fraction form
    18,747.35/25,871.37 = 10,789.57/x
  3. Step 3: Cross multiply
    18,747.35x = 25,871.37 × 10,789.57
  4. Step 4: Simplify right side
    18,747.35x = 279,140,949.49
  5. Step 5: Solve for x
    x = 279,140,949.49/18,747.35
  6. Step 6: Final answer
    x = 14,889.62

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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.