Home / 11,220.45-16,822.58-6,291.60

Finding the Fourth Proportional to 11,220.45, 16,822.58 and 6,291.60

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Solution

The fourth proportional to 11,220.45, 16,822.58 and 6,291.60 is: 9,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.45 : 16,822.58 = 6,291.60 : x
  2. Step 2: Convert to fraction form
    11,220.45/16,822.58 = 6,291.60/x
  3. Step 3: Cross multiply
    11,220.45x = 16,822.58 × 6,291.60
  4. Step 4: Simplify right side
    11,220.45x = 105,840,912.87
  5. Step 5: Solve for x
    x = 105,840,912.87/11,220.45
  6. Step 6: Final answer
    x = 9,432.86

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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.