Home / 13,886.06-20,828.90-3,356

Finding the Fourth Proportional to 13,886.06, 20,828.90 and 3,356

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Solution

The fourth proportional to 13,886.06, 20,828.90 and 3,356 is: 5,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.06 : 20,828.90 = 3,356 : x
  2. Step 2: Convert to fraction form
    13,886.06/20,828.90 = 3,356/x
  3. Step 3: Cross multiply
    13,886.06x = 20,828.90 × 3,356
  4. Step 4: Simplify right side
    13,886.06x = 69,901,788.40
  5. Step 5: Solve for x
    x = 69,901,788.40/13,886.06
  6. Step 6: Final answer
    x = 5,033.95

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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.