Home / 12,976.70-19,467.78-4,210.93

Finding the Fourth Proportional to 12,976.70, 19,467.78 and 4,210.93

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Solution

The fourth proportional to 12,976.70, 19,467.78 and 4,210.93 is: 6,317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.70 : 19,467.78 = 4,210.93 : x
  2. Step 2: Convert to fraction form
    12,976.70/19,467.78 = 4,210.93/x
  3. Step 3: Cross multiply
    12,976.70x = 19,467.78 × 4,210.93
  4. Step 4: Simplify right side
    12,976.70x = 81,977,410.17
  5. Step 5: Solve for x
    x = 81,977,410.17/12,976.70
  6. Step 6: Final answer
    x = 6,317.28

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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.