Home / 14,493.94-20,003.25-8,121.57

Finding the Fourth Proportional to 14,493.94, 20,003.25 and 8,121.57

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Solution

The fourth proportional to 14,493.94, 20,003.25 and 8,121.57 is: 11,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,493.94 : 20,003.25 = 8,121.57 : x
  2. Step 2: Convert to fraction form
    14,493.94/20,003.25 = 8,121.57/x
  3. Step 3: Cross multiply
    14,493.94x = 20,003.25 × 8,121.57
  4. Step 4: Simplify right side
    14,493.94x = 162,457,863.06
  5. Step 5: Solve for x
    x = 162,457,863.06/14,493.94
  6. Step 6: Final answer
    x = 11,208.67

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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.