Home / 18,635.10-25,716.24-10,137.48

Finding the Fourth Proportional to 18,635.10, 25,716.24 and 10,137.48

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Solution

The fourth proportional to 18,635.10, 25,716.24 and 10,137.48 is: 13,989.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.10 : 25,716.24 = 10,137.48 : x
  2. Step 2: Convert to fraction form
    18,635.10/25,716.24 = 10,137.48/x
  3. Step 3: Cross multiply
    18,635.10x = 25,716.24 × 10,137.48
  4. Step 4: Simplify right side
    18,635.10x = 260,697,868.68
  5. Step 5: Solve for x
    x = 260,697,868.68/18,635.10
  6. Step 6: Final answer
    x = 13,989.61

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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.