Home / 15,414.72-21,274.34-11,447.16

Finding the Fourth Proportional to 15,414.72, 21,274.34 and 11,447.16

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Solution

The fourth proportional to 15,414.72, 21,274.34 and 11,447.16 is: 15,798.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.72 : 21,274.34 = 11,447.16 : x
  2. Step 2: Convert to fraction form
    15,414.72/21,274.34 = 11,447.16/x
  3. Step 3: Cross multiply
    15,414.72x = 21,274.34 × 11,447.16
  4. Step 4: Simplify right side
    15,414.72x = 243,530,716.64
  5. Step 5: Solve for x
    x = 243,530,716.64/15,414.72
  6. Step 6: Final answer
    x = 15,798.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.