Home / 12,683.84-19,025.55-3,917.72

Finding the Fourth Proportional to 12,683.84, 19,025.55 and 3,917.72

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Solution

The fourth proportional to 12,683.84, 19,025.55 and 3,917.72 is: 5,876.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.84 : 19,025.55 = 3,917.72 : x
  2. Step 2: Convert to fraction form
    12,683.84/19,025.55 = 3,917.72/x
  3. Step 3: Cross multiply
    12,683.84x = 19,025.55 × 3,917.72
  4. Step 4: Simplify right side
    12,683.84x = 74,536,777.75
  5. Step 5: Solve for x
    x = 74,536,777.75/12,683.84
  6. Step 6: Final answer
    x = 5,876.52

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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.