Home / 11,929.88-17,890.62-4,907.84

Finding the Fourth Proportional to 11,929.88, 17,890.62 and 4,907.84

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Solution

The fourth proportional to 11,929.88, 17,890.62 and 4,907.84 is: 7,360.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.88 : 17,890.62 = 4,907.84 : x
  2. Step 2: Convert to fraction form
    11,929.88/17,890.62 = 4,907.84/x
  3. Step 3: Cross multiply
    11,929.88x = 17,890.62 × 4,907.84
  4. Step 4: Simplify right side
    11,929.88x = 87,804,300.46
  5. Step 5: Solve for x
    x = 87,804,300.46/11,929.88
  6. Step 6: Final answer
    x = 7,360.03

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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.