Home / 14,146.07-21,220.20-4,286.15

Finding the Fourth Proportional to 14,146.07, 21,220.20 and 4,286.15

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Solution

The fourth proportional to 14,146.07, 21,220.20 and 4,286.15 is: 6,429.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.07 : 21,220.20 = 4,286.15 : x
  2. Step 2: Convert to fraction form
    14,146.07/21,220.20 = 4,286.15/x
  3. Step 3: Cross multiply
    14,146.07x = 21,220.20 × 4,286.15
  4. Step 4: Simplify right side
    14,146.07x = 90,952,960.23
  5. Step 5: Solve for x
    x = 90,952,960.23/14,146.07
  6. Step 6: Final answer
    x = 6,429.56

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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.