Home / 12,386.84-18,583.32-6,149.78

Finding the Fourth Proportional to 12,386.84, 18,583.32 and 6,149.78

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Solution

The fourth proportional to 12,386.84, 18,583.32 and 6,149.78 is: 9,226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.84 : 18,583.32 = 6,149.78 : x
  2. Step 2: Convert to fraction form
    12,386.84/18,583.32 = 6,149.78/x
  3. Step 3: Cross multiply
    12,386.84x = 18,583.32 × 6,149.78
  4. Step 4: Simplify right side
    12,386.84x = 114,283,329.67
  5. Step 5: Solve for x
    x = 114,283,329.67/12,386.84
  6. Step 6: Final answer
    x = 9,226.19

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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.