Home / 12,690.44-19,039.56-5,676.36

Finding the Fourth Proportional to 12,690.44, 19,039.56 and 5,676.36

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Solution

The fourth proportional to 12,690.44, 19,039.56 and 5,676.36 is: 8,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.44 : 19,039.56 = 5,676.36 : x
  2. Step 2: Convert to fraction form
    12,690.44/19,039.56 = 5,676.36/x
  3. Step 3: Cross multiply
    12,690.44x = 19,039.56 × 5,676.36
  4. Step 4: Simplify right side
    12,690.44x = 108,075,273.22
  5. Step 5: Solve for x
    x = 108,075,273.22/12,690.44
  6. Step 6: Final answer
    x = 8,516.27

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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.