Home / 15,958.09-22,021.27-8,786.60

Finding the Fourth Proportional to 15,958.09, 22,021.27 and 8,786.60

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Solution

The fourth proportional to 15,958.09, 22,021.27 and 8,786.60 is: 12,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.09 : 22,021.27 = 8,786.60 : x
  2. Step 2: Convert to fraction form
    15,958.09/22,021.27 = 8,786.60/x
  3. Step 3: Cross multiply
    15,958.09x = 22,021.27 × 8,786.60
  4. Step 4: Simplify right side
    15,958.09x = 193,492,090.98
  5. Step 5: Solve for x
    x = 193,492,090.98/15,958.09
  6. Step 6: Final answer
    x = 12,125.02

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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.