Home / 18,686.24-25,785.83-10,722.86

Finding the Fourth Proportional to 18,686.24, 25,785.83 and 10,722.86

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Solution

The fourth proportional to 18,686.24, 25,785.83 and 10,722.86 is: 14,796.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.24 : 25,785.83 = 10,722.86 : x
  2. Step 2: Convert to fraction form
    18,686.24/25,785.83 = 10,722.86/x
  3. Step 3: Cross multiply
    18,686.24x = 25,785.83 × 10,722.86
  4. Step 4: Simplify right side
    18,686.24x = 276,497,662.53
  5. Step 5: Solve for x
    x = 276,497,662.53/18,686.24
  6. Step 6: Final answer
    x = 14,796.86

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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.