Home / 8,680.53-13,021.40-4,296.81

Finding the Fourth Proportional to 8,680.53, 13,021.40 and 4,296.81

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Solution

The fourth proportional to 8,680.53, 13,021.40 and 4,296.81 is: 6,445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.53 : 13,021.40 = 4,296.81 : x
  2. Step 2: Convert to fraction form
    8,680.53/13,021.40 = 4,296.81/x
  3. Step 3: Cross multiply
    8,680.53x = 13,021.40 × 4,296.81
  4. Step 4: Simplify right side
    8,680.53x = 55,950,481.73
  5. Step 5: Solve for x
    x = 55,950,481.73/8,680.53
  6. Step 6: Final answer
    x = 6,445.51

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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.