Home / 18,736.30-25,835.11-12,771.46

Finding the Fourth Proportional to 18,736.30, 25,835.11 and 12,771.46

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Solution

The fourth proportional to 18,736.30, 25,835.11 and 12,771.46 is: 17,610.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.30 : 25,835.11 = 12,771.46 : x
  2. Step 2: Convert to fraction form
    18,736.30/25,835.11 = 12,771.46/x
  3. Step 3: Cross multiply
    18,736.30x = 25,835.11 × 12,771.46
  4. Step 4: Simplify right side
    18,736.30x = 329,952,073.96
  5. Step 5: Solve for x
    x = 329,952,073.96/18,736.30
  6. Step 6: Final answer
    x = 17,610.31

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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.