Home / 14,147.49-21,221.37-4,286.82

Finding the Fourth Proportional to 14,147.49, 21,221.37 and 4,286.82

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Solution

The fourth proportional to 14,147.49, 21,221.37 and 4,286.82 is: 6,430.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.49 : 21,221.37 = 4,286.82 : x
  2. Step 2: Convert to fraction form
    14,147.49/21,221.37 = 4,286.82/x
  3. Step 3: Cross multiply
    14,147.49x = 21,221.37 × 4,286.82
  4. Step 4: Simplify right side
    14,147.49x = 90,972,193.34
  5. Step 5: Solve for x
    x = 90,972,193.34/14,147.49
  6. Step 6: Final answer
    x = 6,430.27

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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.