Home / 15,845.24-21,866.22-8,771.64

Finding the Fourth Proportional to 15,845.24, 21,866.22 and 8,771.64

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Solution

The fourth proportional to 15,845.24, 21,866.22 and 8,771.64 is: 12,104.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.24 : 21,866.22 = 8,771.64 : x
  2. Step 2: Convert to fraction form
    15,845.24/21,866.22 = 8,771.64/x
  3. Step 3: Cross multiply
    15,845.24x = 21,866.22 × 8,771.64
  4. Step 4: Simplify right side
    15,845.24x = 191,802,610.00
  5. Step 5: Solve for x
    x = 191,802,610.00/15,845.24
  6. Step 6: Final answer
    x = 12,104.75

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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.