Home / 12,579.53-18,869.22-3,219.53

Finding the Fourth Proportional to 12,579.53, 18,869.22 and 3,219.53

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Solution

The fourth proportional to 12,579.53, 18,869.22 and 3,219.53 is: 4,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.53 : 18,869.22 = 3,219.53 : x
  2. Step 2: Convert to fraction form
    12,579.53/18,869.22 = 3,219.53/x
  3. Step 3: Cross multiply
    12,579.53x = 18,869.22 × 3,219.53
  4. Step 4: Simplify right side
    12,579.53x = 60,749,925.52
  5. Step 5: Solve for x
    x = 60,749,925.52/12,579.53
  6. Step 6: Final answer
    x = 4,829.27

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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.