Home / 8,879.27-13,320.99-2,639.34

Finding the Fourth Proportional to 8,879.27, 13,320.99 and 2,639.34

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Solution

The fourth proportional to 8,879.27, 13,320.99 and 2,639.34 is: 3,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.27 : 13,320.99 = 2,639.34 : x
  2. Step 2: Convert to fraction form
    8,879.27/13,320.99 = 2,639.34/x
  3. Step 3: Cross multiply
    8,879.27x = 13,320.99 × 2,639.34
  4. Step 4: Simplify right side
    8,879.27x = 35,158,621.75
  5. Step 5: Solve for x
    x = 35,158,621.75/8,879.27
  6. Step 6: Final answer
    x = 3,959.63

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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.