Home / 19,239.56-28,874.46-9,879.20

Finding the Fourth Proportional to 19,239.56, 28,874.46 and 9,879.20

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Solution

The fourth proportional to 19,239.56, 28,874.46 and 9,879.20 is: 14,826.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.56 : 28,874.46 = 9,879.20 : x
  2. Step 2: Convert to fraction form
    19,239.56/28,874.46 = 9,879.20/x
  3. Step 3: Cross multiply
    19,239.56x = 28,874.46 × 9,879.20
  4. Step 4: Simplify right side
    19,239.56x = 285,256,565.23
  5. Step 5: Solve for x
    x = 285,256,565.23/19,239.56
  6. Step 6: Final answer
    x = 14,826.56

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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.