Home / 8,720.88-13,081.32-2,481.54

Finding the Fourth Proportional to 8,720.88, 13,081.32 and 2,481.54

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Solution

The fourth proportional to 8,720.88, 13,081.32 and 2,481.54 is: 3,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.88 : 13,081.32 = 2,481.54 : x
  2. Step 2: Convert to fraction form
    8,720.88/13,081.32 = 2,481.54/x
  3. Step 3: Cross multiply
    8,720.88x = 13,081.32 × 2,481.54
  4. Step 4: Simplify right side
    8,720.88x = 32,461,818.83
  5. Step 5: Solve for x
    x = 32,461,818.83/8,720.88
  6. Step 6: Final answer
    x = 3,722.31

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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.