Home / 8,189.88-12,277.44-5,558.28

Finding the Fourth Proportional to 8,189.88, 12,277.44 and 5,558.28

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Solution

The fourth proportional to 8,189.88, 12,277.44 and 5,558.28 is: 8,332.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.88 : 12,277.44 = 5,558.28 : x
  2. Step 2: Convert to fraction form
    8,189.88/12,277.44 = 5,558.28/x
  3. Step 3: Cross multiply
    8,189.88x = 12,277.44 × 5,558.28
  4. Step 4: Simplify right side
    8,189.88x = 68,241,449.20
  5. Step 5: Solve for x
    x = 68,241,449.20/8,189.88
  6. Step 6: Final answer
    x = 8,332.41

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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.