Home / 12,975.80-19,466.12-4,208.36

Finding the Fourth Proportional to 12,975.80, 19,466.12 and 4,208.36

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Solution

The fourth proportional to 12,975.80, 19,466.12 and 4,208.36 is: 6,313.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.80 : 19,466.12 = 4,208.36 : x
  2. Step 2: Convert to fraction form
    12,975.80/19,466.12 = 4,208.36/x
  3. Step 3: Cross multiply
    12,975.80x = 19,466.12 × 4,208.36
  4. Step 4: Simplify right side
    12,975.80x = 81,920,353.95
  5. Step 5: Solve for x
    x = 81,920,353.95/12,975.80
  6. Step 6: Final answer
    x = 6,313.32

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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.