Home / 14,183.64-21,272.72-5,416.47

Finding the Fourth Proportional to 14,183.64, 21,272.72 and 5,416.47

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Solution

The fourth proportional to 14,183.64, 21,272.72 and 5,416.47 is: 8,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,183.64 : 21,272.72 = 5,416.47 : x
  2. Step 2: Convert to fraction form
    14,183.64/21,272.72 = 5,416.47/x
  3. Step 3: Cross multiply
    14,183.64x = 21,272.72 × 5,416.47
  4. Step 4: Simplify right side
    14,183.64x = 115,223,022.62
  5. Step 5: Solve for x
    x = 115,223,022.62/14,183.64
  6. Step 6: Final answer
    x = 8,123.66

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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.