Home / 13,644.39-20,467.46-4,284.78

Finding the Fourth Proportional to 13,644.39, 20,467.46 and 4,284.78

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Solution

The fourth proportional to 13,644.39, 20,467.46 and 4,284.78 is: 6,427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.39 : 20,467.46 = 4,284.78 : x
  2. Step 2: Convert to fraction form
    13,644.39/20,467.46 = 4,284.78/x
  3. Step 3: Cross multiply
    13,644.39x = 20,467.46 × 4,284.78
  4. Step 4: Simplify right side
    13,644.39x = 87,698,541.83
  5. Step 5: Solve for x
    x = 87,698,541.83/13,644.39
  6. Step 6: Final answer
    x = 6,427.44

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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.