Home / 18,742.58-25,879.66-11,582.90

Finding the Fourth Proportional to 18,742.58, 25,879.66 and 11,582.90

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Solution

The fourth proportional to 18,742.58, 25,879.66 and 11,582.90 is: 15,993.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.58 : 25,879.66 = 11,582.90 : x
  2. Step 2: Convert to fraction form
    18,742.58/25,879.66 = 11,582.90/x
  3. Step 3: Cross multiply
    18,742.58x = 25,879.66 × 11,582.90
  4. Step 4: Simplify right side
    18,742.58x = 299,761,513.81
  5. Step 5: Solve for x
    x = 299,761,513.81/18,742.58
  6. Step 6: Final answer
    x = 15,993.61

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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.