Home / 13,267.25-19,851.79-8,005.31

Finding the Fourth Proportional to 13,267.25, 19,851.79 and 8,005.31

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Solution

The fourth proportional to 13,267.25, 19,851.79 and 8,005.31 is: 11,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.25 : 19,851.79 = 8,005.31 : x
  2. Step 2: Convert to fraction form
    13,267.25/19,851.79 = 8,005.31/x
  3. Step 3: Cross multiply
    13,267.25x = 19,851.79 × 8,005.31
  4. Step 4: Simplify right side
    13,267.25x = 158,919,733.00
  5. Step 5: Solve for x
    x = 158,919,733.00/13,267.25
  6. Step 6: Final answer
    x = 11,978.35

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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.