Home / 12,683.72-19,025.01-3,918.57

Finding the Fourth Proportional to 12,683.72, 19,025.01 and 3,918.57

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Solution

The fourth proportional to 12,683.72, 19,025.01 and 3,918.57 is: 5,877.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.72 : 19,025.01 = 3,918.57 : x
  2. Step 2: Convert to fraction form
    12,683.72/19,025.01 = 3,918.57/x
  3. Step 3: Cross multiply
    12,683.72x = 19,025.01 × 3,918.57
  4. Step 4: Simplify right side
    12,683.72x = 74,550,833.44
  5. Step 5: Solve for x
    x = 74,550,833.44/12,683.72
  6. Step 6: Final answer
    x = 5,877.68

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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.