Home / 13,484.22-20,187.42-11,268.06

Finding the Fourth Proportional to 13,484.22, 20,187.42 and 11,268.06

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Solution

The fourth proportional to 13,484.22, 20,187.42 and 11,268.06 is: 16,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.22 : 20,187.42 = 11,268.06 : x
  2. Step 2: Convert to fraction form
    13,484.22/20,187.42 = 11,268.06/x
  3. Step 3: Cross multiply
    13,484.22x = 20,187.42 × 11,268.06
  4. Step 4: Simplify right side
    13,484.22x = 227,473,059.81
  5. Step 5: Solve for x
    x = 227,473,059.81/13,484.22
  6. Step 6: Final answer
    x = 16,869.57

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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.