Home / 16,742.64-23,081.21-11,961.31

Finding the Fourth Proportional to 16,742.64, 23,081.21 and 11,961.31

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Solution

The fourth proportional to 16,742.64, 23,081.21 and 11,961.31 is: 16,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,742.64 : 23,081.21 = 11,961.31 : x
  2. Step 2: Convert to fraction form
    16,742.64/23,081.21 = 11,961.31/x
  3. Step 3: Cross multiply
    16,742.64x = 23,081.21 × 11,961.31
  4. Step 4: Simplify right side
    16,742.64x = 276,081,507.99
  5. Step 5: Solve for x
    x = 276,081,507.99/16,742.64
  6. Step 6: Final answer
    x = 16,489.72

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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.