Home / 15,616.50-21,550.73-8,542.92

Finding the Fourth Proportional to 15,616.50, 21,550.73 and 8,542.92

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Solution

The fourth proportional to 15,616.50, 21,550.73 and 8,542.92 is: 11,789.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.50 : 21,550.73 = 8,542.92 : x
  2. Step 2: Convert to fraction form
    15,616.50/21,550.73 = 8,542.92/x
  3. Step 3: Cross multiply
    15,616.50x = 21,550.73 × 8,542.92
  4. Step 4: Simplify right side
    15,616.50x = 184,106,162.33
  5. Step 5: Solve for x
    x = 184,106,162.33/15,616.50
  6. Step 6: Final answer
    x = 11,789.21

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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.