Home / 13,558.39-20,339.61-4,199.25

Finding the Fourth Proportional to 13,558.39, 20,339.61 and 4,199.25

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Solution

The fourth proportional to 13,558.39, 20,339.61 and 4,199.25 is: 6,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.39 : 20,339.61 = 4,199.25 : x
  2. Step 2: Convert to fraction form
    13,558.39/20,339.61 = 4,199.25/x
  3. Step 3: Cross multiply
    13,558.39x = 20,339.61 × 4,199.25
  4. Step 4: Simplify right side
    13,558.39x = 85,411,107.29
  5. Step 5: Solve for x
    x = 85,411,107.29/13,558.39
  6. Step 6: Final answer
    x = 6,299.50

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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.