Home / 14,146.25-21,219.48-4,286.26

Finding the Fourth Proportional to 14,146.25, 21,219.48 and 4,286.26

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Solution

The fourth proportional to 14,146.25, 21,219.48 and 4,286.26 is: 6,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.25 : 21,219.48 = 4,286.26 : x
  2. Step 2: Convert to fraction form
    14,146.25/21,219.48 = 4,286.26/x
  3. Step 3: Cross multiply
    14,146.25x = 21,219.48 × 4,286.26
  4. Step 4: Simplify right side
    14,146.25x = 90,952,155.30
  5. Step 5: Solve for x
    x = 90,952,155.30/14,146.25
  6. Step 6: Final answer
    x = 6,429.42

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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.