Home / 15,616.59-21,550.62-8,542.86

Finding the Fourth Proportional to 15,616.59, 21,550.62 and 8,542.86

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Solution

The fourth proportional to 15,616.59, 21,550.62 and 8,542.86 is: 11,789.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.59 : 21,550.62 = 8,542.86 : x
  2. Step 2: Convert to fraction form
    15,616.59/21,550.62 = 8,542.86/x
  3. Step 3: Cross multiply
    15,616.59x = 21,550.62 × 8,542.86
  4. Step 4: Simplify right side
    15,616.59x = 184,103,929.57
  5. Step 5: Solve for x
    x = 184,103,929.57/15,616.59
  6. Step 6: Final answer
    x = 11,789.00

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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.