Home / 12,765.75-19,148.49-4,980.03

Finding the Fourth Proportional to 12,765.75, 19,148.49 and 4,980.03

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Solution

The fourth proportional to 12,765.75, 19,148.49 and 4,980.03 is: 7,469.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.75 : 19,148.49 = 4,980.03 : x
  2. Step 2: Convert to fraction form
    12,765.75/19,148.49 = 4,980.03/x
  3. Step 3: Cross multiply
    12,765.75x = 19,148.49 × 4,980.03
  4. Step 4: Simplify right side
    12,765.75x = 95,360,054.65
  5. Step 5: Solve for x
    x = 95,360,054.65/12,765.75
  6. Step 6: Final answer
    x = 7,469.99

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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.