Home / 17,919.74-26,879.66-5,439.86

Finding the Fourth Proportional to 17,919.74, 26,879.66 and 5,439.86

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Solution

The fourth proportional to 17,919.74, 26,879.66 and 5,439.86 is: 8,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.74 : 26,879.66 = 5,439.86 : x
  2. Step 2: Convert to fraction form
    17,919.74/26,879.66 = 5,439.86/x
  3. Step 3: Cross multiply
    17,919.74x = 26,879.66 × 5,439.86
  4. Step 4: Simplify right side
    17,919.74x = 146,221,587.25
  5. Step 5: Solve for x
    x = 146,221,587.25/17,919.74
  6. Step 6: Final answer
    x = 8,159.81

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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.