Home / 14,181.86-21,240.39-6,791.51

Finding the Fourth Proportional to 14,181.86, 21,240.39 and 6,791.51

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Solution

The fourth proportional to 14,181.86, 21,240.39 and 6,791.51 is: 10,171.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.86 : 21,240.39 = 6,791.51 : x
  2. Step 2: Convert to fraction form
    14,181.86/21,240.39 = 6,791.51/x
  3. Step 3: Cross multiply
    14,181.86x = 21,240.39 × 6,791.51
  4. Step 4: Simplify right side
    14,181.86x = 144,254,321.09
  5. Step 5: Solve for x
    x = 144,254,321.09/14,181.86
  6. Step 6: Final answer
    x = 10,171.75

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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.