Home / 12,731.07-19,099.31-3,847.06

Finding the Fourth Proportional to 12,731.07, 19,099.31 and 3,847.06

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Solution

The fourth proportional to 12,731.07, 19,099.31 and 3,847.06 is: 5,771.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.07 : 19,099.31 = 3,847.06 : x
  2. Step 2: Convert to fraction form
    12,731.07/19,099.31 = 3,847.06/x
  3. Step 3: Cross multiply
    12,731.07x = 19,099.31 × 3,847.06
  4. Step 4: Simplify right side
    12,731.07x = 73,476,217.81
  5. Step 5: Solve for x
    x = 73,476,217.81/12,731.07
  6. Step 6: Final answer
    x = 5,771.41

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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.