Home / 11,868.45-16,378.80-6,563.60

Finding the Fourth Proportional to 11,868.45, 16,378.80 and 6,563.60

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Solution

The fourth proportional to 11,868.45, 16,378.80 and 6,563.60 is: 9,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.45 : 16,378.80 = 6,563.60 : x
  2. Step 2: Convert to fraction form
    11,868.45/16,378.80 = 6,563.60/x
  3. Step 3: Cross multiply
    11,868.45x = 16,378.80 × 6,563.60
  4. Step 4: Simplify right side
    11,868.45x = 107,503,809.79
  5. Step 5: Solve for x
    x = 107,503,809.79/11,868.45
  6. Step 6: Final answer
    x = 9,057.95

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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.