Home / 12,928.95-19,393.43-3,568.66

Finding the Fourth Proportional to 12,928.95, 19,393.43 and 3,568.66

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Solution

The fourth proportional to 12,928.95, 19,393.43 and 3,568.66 is: 5,352.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.95 : 19,393.43 = 3,568.66 : x
  2. Step 2: Convert to fraction form
    12,928.95/19,393.43 = 3,568.66/x
  3. Step 3: Cross multiply
    12,928.95x = 19,393.43 × 3,568.66
  4. Step 4: Simplify right side
    12,928.95x = 69,208,557.90
  5. Step 5: Solve for x
    x = 69,208,557.90/12,928.95
  6. Step 6: Final answer
    x = 5,352.99

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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.