Home / 13,928.09-20,842.23-12,060.42

Finding the Fourth Proportional to 13,928.09, 20,842.23 and 12,060.42

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Solution

The fourth proportional to 13,928.09, 20,842.23 and 12,060.42 is: 18,047.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.09 : 20,842.23 = 12,060.42 : x
  2. Step 2: Convert to fraction form
    13,928.09/20,842.23 = 12,060.42/x
  3. Step 3: Cross multiply
    13,928.09x = 20,842.23 × 12,060.42
  4. Step 4: Simplify right side
    13,928.09x = 251,366,047.54
  5. Step 5: Solve for x
    x = 251,366,047.54/13,928.09
  6. Step 6: Final answer
    x = 18,047.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.