Home / 12,573.37-18,869.19-10,137.61

Finding the Fourth Proportional to 12,573.37, 18,869.19 and 10,137.61

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Solution

The fourth proportional to 12,573.37, 18,869.19 and 10,137.61 is: 15,213.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.37 : 18,869.19 = 10,137.61 : x
  2. Step 2: Convert to fraction form
    12,573.37/18,869.19 = 10,137.61/x
  3. Step 3: Cross multiply
    12,573.37x = 18,869.19 × 10,137.61
  4. Step 4: Simplify right side
    12,573.37x = 191,288,489.24
  5. Step 5: Solve for x
    x = 191,288,489.24/12,573.37
  6. Step 6: Final answer
    x = 15,213.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.