Home / 13,486.81-20,194.77-10,840.27

Finding the Fourth Proportional to 13,486.81, 20,194.77 and 10,840.27

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Solution

The fourth proportional to 13,486.81, 20,194.77 and 10,840.27 is: 16,231.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.81 : 20,194.77 = 10,840.27 : x
  2. Step 2: Convert to fraction form
    13,486.81/20,194.77 = 10,840.27/x
  3. Step 3: Cross multiply
    13,486.81x = 20,194.77 × 10,840.27
  4. Step 4: Simplify right side
    13,486.81x = 218,916,759.39
  5. Step 5: Solve for x
    x = 218,916,759.39/13,486.81
  6. Step 6: Final answer
    x = 16,231.92

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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.