Home / 12,814.73-19,212.51-8,643.02

Finding the Fourth Proportional to 12,814.73, 19,212.51 and 8,643.02

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Solution

The fourth proportional to 12,814.73, 19,212.51 and 8,643.02 is: 12,958.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.73 : 19,212.51 = 8,643.02 : x
  2. Step 2: Convert to fraction form
    12,814.73/19,212.51 = 8,643.02/x
  3. Step 3: Cross multiply
    12,814.73x = 19,212.51 × 8,643.02
  4. Step 4: Simplify right side
    12,814.73x = 166,054,012.12
  5. Step 5: Solve for x
    x = 166,054,012.12/12,814.73
  6. Step 6: Final answer
    x = 12,958.06

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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.