Home / 13,321.52-19,976.52-4,085.36

Finding the Fourth Proportional to 13,321.52, 19,976.52 and 4,085.36

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Solution

The fourth proportional to 13,321.52, 19,976.52 and 4,085.36 is: 6,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.52 : 19,976.52 = 4,085.36 : x
  2. Step 2: Convert to fraction form
    13,321.52/19,976.52 = 4,085.36/x
  3. Step 3: Cross multiply
    13,321.52x = 19,976.52 × 4,085.36
  4. Step 4: Simplify right side
    13,321.52x = 81,611,275.75
  5. Step 5: Solve for x
    x = 81,611,275.75/13,321.52
  6. Step 6: Final answer
    x = 6,126.27

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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.