Home / 13,863.39-20,788.90-4,000.32

Finding the Fourth Proportional to 13,863.39, 20,788.90 and 4,000.32

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Solution

The fourth proportional to 13,863.39, 20,788.90 and 4,000.32 is: 5,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.39 : 20,788.90 = 4,000.32 : x
  2. Step 2: Convert to fraction form
    13,863.39/20,788.90 = 4,000.32/x
  3. Step 3: Cross multiply
    13,863.39x = 20,788.90 × 4,000.32
  4. Step 4: Simplify right side
    13,863.39x = 83,162,242.45
  5. Step 5: Solve for x
    x = 83,162,242.45/13,863.39
  6. Step 6: Final answer
    x = 5,998.70

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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.