Home / 12,977.10-19,468.44-4,211.82

Finding the Fourth Proportional to 12,977.10, 19,468.44 and 4,211.82

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Solution

The fourth proportional to 12,977.10, 19,468.44 and 4,211.82 is: 6,318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.10 : 19,468.44 = 4,211.82 : x
  2. Step 2: Convert to fraction form
    12,977.10/19,468.44 = 4,211.82/x
  3. Step 3: Cross multiply
    12,977.10x = 19,468.44 × 4,211.82
  4. Step 4: Simplify right side
    12,977.10x = 81,997,564.96
  5. Step 5: Solve for x
    x = 81,997,564.96/12,977.10
  6. Step 6: Final answer
    x = 6,318.64

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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.