Home / 12,975.56-19,466.18-4,211.36

Finding the Fourth Proportional to 12,975.56, 19,466.18 and 4,211.36

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Solution

The fourth proportional to 12,975.56, 19,466.18 and 4,211.36 is: 6,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.56 : 19,466.18 = 4,211.36 : x
  2. Step 2: Convert to fraction form
    12,975.56/19,466.18 = 4,211.36/x
  3. Step 3: Cross multiply
    12,975.56x = 19,466.18 × 4,211.36
  4. Step 4: Simplify right side
    12,975.56x = 81,978,973.42
  5. Step 5: Solve for x
    x = 81,978,973.42/12,975.56
  6. Step 6: Final answer
    x = 6,317.96

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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.