Home / 9,118.17-13,676.55-2,878.37

Finding the Fourth Proportional to 9,118.17, 13,676.55 and 2,878.37

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Solution

The fourth proportional to 9,118.17, 13,676.55 and 2,878.37 is: 4,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.17 : 13,676.55 = 2,878.37 : x
  2. Step 2: Convert to fraction form
    9,118.17/13,676.55 = 2,878.37/x
  3. Step 3: Cross multiply
    9,118.17x = 13,676.55 × 2,878.37
  4. Step 4: Simplify right side
    9,118.17x = 39,366,143.33
  5. Step 5: Solve for x
    x = 39,366,143.33/9,118.17
  6. Step 6: Final answer
    x = 4,317.33

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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.