Home / 15,866.28-21,896.33-8,793.36

Finding the Fourth Proportional to 15,866.28, 21,896.33 and 8,793.36

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Solution

The fourth proportional to 15,866.28, 21,896.33 and 8,793.36 is: 12,135.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.28 : 21,896.33 = 8,793.36 : x
  2. Step 2: Convert to fraction form
    15,866.28/21,896.33 = 8,793.36/x
  3. Step 3: Cross multiply
    15,866.28x = 21,896.33 × 8,793.36
  4. Step 4: Simplify right side
    15,866.28x = 192,542,268.40
  5. Step 5: Solve for x
    x = 192,542,268.40/15,866.28
  6. Step 6: Final answer
    x = 12,135.31

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1.5x scale

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.