Home / 9,286.24-12,820.80-5,929.60

Finding the Fourth Proportional to 9,286.24, 12,820.80 and 5,929.60

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Solution

The fourth proportional to 9,286.24, 12,820.80 and 5,929.60 is: 8,186.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,286.24 : 12,820.80 = 5,929.60 : x
  2. Step 2: Convert to fraction form
    9,286.24/12,820.80 = 5,929.60/x
  3. Step 3: Cross multiply
    9,286.24x = 12,820.80 × 5,929.60
  4. Step 4: Simplify right side
    9,286.24x = 76,022,215.68
  5. Step 5: Solve for x
    x = 76,022,215.68/9,286.24
  6. Step 6: Final answer
    x = 8,186.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.