Home / 11,947.06-17,890.35-8,828.02

Finding the Fourth Proportional to 11,947.06, 17,890.35 and 8,828.02

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Solution

The fourth proportional to 11,947.06, 17,890.35 and 8,828.02 is: 13,219.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.06 : 17,890.35 = 8,828.02 : x
  2. Step 2: Convert to fraction form
    11,947.06/17,890.35 = 8,828.02/x
  3. Step 3: Cross multiply
    11,947.06x = 17,890.35 × 8,828.02
  4. Step 4: Simplify right side
    11,947.06x = 157,936,367.61
  5. Step 5: Solve for x
    x = 157,936,367.61/11,947.06
  6. Step 6: Final answer
    x = 13,219.68

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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.