Home / 13,439.57-20,162.37-4,554.39

Finding the Fourth Proportional to 13,439.57, 20,162.37 and 4,554.39

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Solution

The fourth proportional to 13,439.57, 20,162.37 and 4,554.39 is: 6,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.57 : 20,162.37 = 4,554.39 : x
  2. Step 2: Convert to fraction form
    13,439.57/20,162.37 = 4,554.39/x
  3. Step 3: Cross multiply
    13,439.57x = 20,162.37 × 4,554.39
  4. Step 4: Simplify right side
    13,439.57x = 91,827,296.30
  5. Step 5: Solve for x
    x = 91,827,296.30/13,439.57
  6. Step 6: Final answer
    x = 6,832.61

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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.