Home / 8,720.25-13,080.33-4,832.88

Finding the Fourth Proportional to 8,720.25, 13,080.33 and 4,832.88

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Solution

The fourth proportional to 8,720.25, 13,080.33 and 4,832.88 is: 7,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.25 : 13,080.33 = 4,832.88 : x
  2. Step 2: Convert to fraction form
    8,720.25/13,080.33 = 4,832.88/x
  3. Step 3: Cross multiply
    8,720.25x = 13,080.33 × 4,832.88
  4. Step 4: Simplify right side
    8,720.25x = 63,215,665.25
  5. Step 5: Solve for x
    x = 63,215,665.25/8,720.25
  6. Step 6: Final answer
    x = 7,249.30

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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.