Home / 12,955.50-19,433.52-3,721.50

Finding the Fourth Proportional to 12,955.50, 19,433.52 and 3,721.50

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Solution

The fourth proportional to 12,955.50, 19,433.52 and 3,721.50 is: 5,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.50 : 19,433.52 = 3,721.50 : x
  2. Step 2: Convert to fraction form
    12,955.50/19,433.52 = 3,721.50/x
  3. Step 3: Cross multiply
    12,955.50x = 19,433.52 × 3,721.50
  4. Step 4: Simplify right side
    12,955.50x = 72,321,844.68
  5. Step 5: Solve for x
    x = 72,321,844.68/12,955.50
  6. Step 6: Final answer
    x = 5,582.33

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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.