Home / 12,928.56-19,392.36-4,163.52

Finding the Fourth Proportional to 12,928.56, 19,392.36 and 4,163.52

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Solution

The fourth proportional to 12,928.56, 19,392.36 and 4,163.52 is: 6,245.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.56 : 19,392.36 = 4,163.52 : x
  2. Step 2: Convert to fraction form
    12,928.56/19,392.36 = 4,163.52/x
  3. Step 3: Cross multiply
    12,928.56x = 19,392.36 × 4,163.52
  4. Step 4: Simplify right side
    12,928.56x = 80,740,478.71
  5. Step 5: Solve for x
    x = 80,740,478.71/12,928.56
  6. Step 6: Final answer
    x = 6,245.13

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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.