Home / 12,804.54-19,198.62-5,407.02

Finding the Fourth Proportional to 12,804.54, 19,198.62 and 5,407.02

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Solution

The fourth proportional to 12,804.54, 19,198.62 and 5,407.02 is: 8,107.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.54 : 19,198.62 = 5,407.02 : x
  2. Step 2: Convert to fraction form
    12,804.54/19,198.62 = 5,407.02/x
  3. Step 3: Cross multiply
    12,804.54x = 19,198.62 × 5,407.02
  4. Step 4: Simplify right side
    12,804.54x = 103,807,322.31
  5. Step 5: Solve for x
    x = 103,807,322.31/12,804.54
  6. Step 6: Final answer
    x = 8,107.07

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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.