Home / 12,977.44-19,468.90-4,211.68

Finding the Fourth Proportional to 12,977.44, 19,468.90 and 4,211.68

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Solution

The fourth proportional to 12,977.44, 19,468.90 and 4,211.68 is: 6,318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.44 : 19,468.90 = 4,211.68 : x
  2. Step 2: Convert to fraction form
    12,977.44/19,468.90 = 4,211.68/x
  3. Step 3: Cross multiply
    12,977.44x = 19,468.90 × 4,211.68
  4. Step 4: Simplify right side
    12,977.44x = 81,996,733.34
  5. Step 5: Solve for x
    x = 81,996,733.34/12,977.44
  6. Step 6: Final answer
    x = 6,318.41

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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.