Home / 12,110.90-18,166.32-4,717.08

Finding the Fourth Proportional to 12,110.90, 18,166.32 and 4,717.08

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Solution

The fourth proportional to 12,110.90, 18,166.32 and 4,717.08 is: 7,075.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.90 : 18,166.32 = 4,717.08 : x
  2. Step 2: Convert to fraction form
    12,110.90/18,166.32 = 4,717.08/x
  3. Step 3: Cross multiply
    12,110.90x = 18,166.32 × 4,717.08
  4. Step 4: Simplify right side
    12,110.90x = 85,691,984.75
  5. Step 5: Solve for x
    x = 85,691,984.75/12,110.90
  6. Step 6: Final answer
    x = 7,075.61

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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.