Home / 12,804.12-19,208.84-5,408.64

Finding the Fourth Proportional to 12,804.12, 19,208.84 and 5,408.64

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Solution

The fourth proportional to 12,804.12, 19,208.84 and 5,408.64 is: 8,114.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.12 : 19,208.84 = 5,408.64 : x
  2. Step 2: Convert to fraction form
    12,804.12/19,208.84 = 5,408.64/x
  3. Step 3: Cross multiply
    12,804.12x = 19,208.84 × 5,408.64
  4. Step 4: Simplify right side
    12,804.12x = 103,893,673.33
  5. Step 5: Solve for x
    x = 103,893,673.33/12,804.12
  6. Step 6: Final answer
    x = 8,114.08

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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.