Home / 14,366.62-21,550.20-3,978.28

Finding the Fourth Proportional to 14,366.62, 21,550.20 and 3,978.28

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Solution

The fourth proportional to 14,366.62, 21,550.20 and 3,978.28 is: 5,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,366.62 : 21,550.20 = 3,978.28 : x
  2. Step 2: Convert to fraction form
    14,366.62/21,550.20 = 3,978.28/x
  3. Step 3: Cross multiply
    14,366.62x = 21,550.20 × 3,978.28
  4. Step 4: Simplify right side
    14,366.62x = 85,732,729.66
  5. Step 5: Solve for x
    x = 85,732,729.66/14,366.62
  6. Step 6: Final answer
    x = 5,967.49

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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.