Home / 12,183.17-18,263.79-4,386.50

Finding the Fourth Proportional to 12,183.17, 18,263.79 and 4,386.50

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Solution

The fourth proportional to 12,183.17, 18,263.79 and 4,386.50 is: 6,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.17 : 18,263.79 = 4,386.50 : x
  2. Step 2: Convert to fraction form
    12,183.17/18,263.79 = 4,386.50/x
  3. Step 3: Cross multiply
    12,183.17x = 18,263.79 × 4,386.50
  4. Step 4: Simplify right side
    12,183.17x = 80,114,114.84
  5. Step 5: Solve for x
    x = 80,114,114.84/12,183.17
  6. Step 6: Final answer
    x = 6,575.80

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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.