Home / 8,772.63-13,161.39-4,879.77

Finding the Fourth Proportional to 8,772.63, 13,161.39 and 4,879.77

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Solution

The fourth proportional to 8,772.63, 13,161.39 and 4,879.77 is: 7,321.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.63 : 13,161.39 = 4,879.77 : x
  2. Step 2: Convert to fraction form
    8,772.63/13,161.39 = 4,879.77/x
  3. Step 3: Cross multiply
    8,772.63x = 13,161.39 × 4,879.77
  4. Step 4: Simplify right side
    8,772.63x = 64,224,556.08
  5. Step 5: Solve for x
    x = 64,224,556.08/8,772.63
  6. Step 6: Final answer
    x = 7,321.02

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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.