Home / 13,483.32-20,229.18-12,087.87

Finding the Fourth Proportional to 13,483.32, 20,229.18 and 12,087.87

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Solution

The fourth proportional to 13,483.32, 20,229.18 and 12,087.87 is: 18,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.32 : 20,229.18 = 12,087.87 : x
  2. Step 2: Convert to fraction form
    13,483.32/20,229.18 = 12,087.87/x
  3. Step 3: Cross multiply
    13,483.32x = 20,229.18 × 12,087.87
  4. Step 4: Simplify right side
    13,483.32x = 244,527,698.05
  5. Step 5: Solve for x
    x = 244,527,698.05/13,483.32
  6. Step 6: Final answer
    x = 18,135.57

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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.