Home / 12,578.14-18,870.62-11,201.04

Finding the Fourth Proportional to 12,578.14, 18,870.62 and 11,201.04

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Solution

The fourth proportional to 12,578.14, 18,870.62 and 11,201.04 is: 16,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.14 : 18,870.62 = 11,201.04 : x
  2. Step 2: Convert to fraction form
    12,578.14/18,870.62 = 11,201.04/x
  3. Step 3: Cross multiply
    12,578.14x = 18,870.62 × 11,201.04
  4. Step 4: Simplify right side
    12,578.14x = 211,370,569.44
  5. Step 5: Solve for x
    x = 211,370,569.44/12,578.14
  6. Step 6: Final answer
    x = 16,804.60

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1.5x scale

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.