Home / 12,977.39-19,453.77-4,206.14

Finding the Fourth Proportional to 12,977.39, 19,453.77 and 4,206.14

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Solution

The fourth proportional to 12,977.39, 19,453.77 and 4,206.14 is: 6,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.39 : 19,453.77 = 4,206.14 : x
  2. Step 2: Convert to fraction form
    12,977.39/19,453.77 = 4,206.14/x
  3. Step 3: Cross multiply
    12,977.39x = 19,453.77 × 4,206.14
  4. Step 4: Simplify right side
    12,977.39x = 81,825,182.88
  5. Step 5: Solve for x
    x = 81,825,182.88/12,977.39
  6. Step 6: Final answer
    x = 6,305.21

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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.