Home / 14,150.43-21,228.71-4,290.44

Finding the Fourth Proportional to 14,150.43, 21,228.71 and 4,290.44

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Solution

The fourth proportional to 14,150.43, 21,228.71 and 4,290.44 is: 6,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,150.43 : 21,228.71 = 4,290.44 : x
  2. Step 2: Convert to fraction form
    14,150.43/21,228.71 = 4,290.44/x
  3. Step 3: Cross multiply
    14,150.43x = 21,228.71 × 4,290.44
  4. Step 4: Simplify right side
    14,150.43x = 91,080,378.94
  5. Step 5: Solve for x
    x = 91,080,378.94/14,150.43
  6. Step 6: Final answer
    x = 6,436.58

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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.