Home / 12,653.19-18,975.92-4,860.09

Finding the Fourth Proportional to 12,653.19, 18,975.92 and 4,860.09

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Solution

The fourth proportional to 12,653.19, 18,975.92 and 4,860.09 is: 7,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.19 : 18,975.92 = 4,860.09 : x
  2. Step 2: Convert to fraction form
    12,653.19/18,975.92 = 4,860.09/x
  3. Step 3: Cross multiply
    12,653.19x = 18,975.92 × 4,860.09
  4. Step 4: Simplify right side
    12,653.19x = 92,224,654.73
  5. Step 5: Solve for x
    x = 92,224,654.73/12,653.19
  6. Step 6: Final answer
    x = 7,288.65

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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.