Home / 12,427.62-18,643.26-4,108.50

Finding the Fourth Proportional to 12,427.62, 18,643.26 and 4,108.50

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Solution

The fourth proportional to 12,427.62, 18,643.26 and 4,108.50 is: 6,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.62 : 18,643.26 = 4,108.50 : x
  2. Step 2: Convert to fraction form
    12,427.62/18,643.26 = 4,108.50/x
  3. Step 3: Cross multiply
    12,427.62x = 18,643.26 × 4,108.50
  4. Step 4: Simplify right side
    12,427.62x = 76,595,833.71
  5. Step 5: Solve for x
    x = 76,595,833.71/12,427.62
  6. Step 6: Final answer
    x = 6,163.35

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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.