Home / 8,188.81-11,289.11-6,924.79

Finding the Fourth Proportional to 8,188.81, 11,289.11 and 6,924.79

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Solution

The fourth proportional to 8,188.81, 11,289.11 and 6,924.79 is: 9,546.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.81 : 11,289.11 = 6,924.79 : x
  2. Step 2: Convert to fraction form
    8,188.81/11,289.11 = 6,924.79/x
  3. Step 3: Cross multiply
    8,188.81x = 11,289.11 × 6,924.79
  4. Step 4: Simplify right side
    8,188.81x = 78,174,753.95
  5. Step 5: Solve for x
    x = 78,174,753.95/8,188.81
  6. Step 6: Final answer
    x = 9,546.54

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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.