Home / 15,866.90-21,896.27-8,793.37

Finding the Fourth Proportional to 15,866.90, 21,896.27 and 8,793.37

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Solution

The fourth proportional to 15,866.90, 21,896.27 and 8,793.37 is: 12,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.90 : 21,896.27 = 8,793.37 : x
  2. Step 2: Convert to fraction form
    15,866.90/21,896.27 = 8,793.37/x
  3. Step 3: Cross multiply
    15,866.90x = 21,896.27 × 8,793.37
  4. Step 4: Simplify right side
    15,866.90x = 192,541,894.25
  5. Step 5: Solve for x
    x = 192,541,894.25/15,866.90
  6. Step 6: Final answer
    x = 12,134.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.