Home / 13,887.45-20,803.84-8,324.27

Finding the Fourth Proportional to 13,887.45, 20,803.84 and 8,324.27

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Solution

The fourth proportional to 13,887.45, 20,803.84 and 8,324.27 is: 12,470.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.45 : 20,803.84 = 8,324.27 : x
  2. Step 2: Convert to fraction form
    13,887.45/20,803.84 = 8,324.27/x
  3. Step 3: Cross multiply
    13,887.45x = 20,803.84 × 8,324.27
  4. Step 4: Simplify right side
    13,887.45x = 173,176,734.38
  5. Step 5: Solve for x
    x = 173,176,734.38/13,887.45
  6. Step 6: Final answer
    x = 12,470.02

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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.