Home / 8,720.83-13,082.37-3,173.32

Finding the Fourth Proportional to 8,720.83, 13,082.37 and 3,173.32

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Solution

The fourth proportional to 8,720.83, 13,082.37 and 3,173.32 is: 4,760.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.83 : 13,082.37 = 3,173.32 : x
  2. Step 2: Convert to fraction form
    8,720.83/13,082.37 = 3,173.32/x
  3. Step 3: Cross multiply
    8,720.83x = 13,082.37 × 3,173.32
  4. Step 4: Simplify right side
    8,720.83x = 41,514,546.37
  5. Step 5: Solve for x
    x = 41,514,546.37/8,720.83
  6. Step 6: Final answer
    x = 4,760.39

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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.