Home / 10,918.75-16,379.62-4,994.26

Finding the Fourth Proportional to 10,918.75, 16,379.62 and 4,994.26

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Solution

The fourth proportional to 10,918.75, 16,379.62 and 4,994.26 is: 7,492.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.75 : 16,379.62 = 4,994.26 : x
  2. Step 2: Convert to fraction form
    10,918.75/16,379.62 = 4,994.26/x
  3. Step 3: Cross multiply
    10,918.75x = 16,379.62 × 4,994.26
  4. Step 4: Simplify right side
    10,918.75x = 81,804,027.55
  5. Step 5: Solve for x
    x = 81,804,027.55/10,918.75
  6. Step 6: Final answer
    x = 7,492.07

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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.