Home / 13,485.22-20,188.92-11,269.06

Finding the Fourth Proportional to 13,485.22, 20,188.92 and 11,269.06

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Solution

The fourth proportional to 13,485.22, 20,188.92 and 11,269.06 is: 16,871.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.22 : 20,188.92 = 11,269.06 : x
  2. Step 2: Convert to fraction form
    13,485.22/20,188.92 = 11,269.06/x
  3. Step 3: Cross multiply
    13,485.22x = 20,188.92 × 11,269.06
  4. Step 4: Simplify right side
    13,485.22x = 227,510,150.82
  5. Step 5: Solve for x
    x = 227,510,150.82/13,485.22
  6. Step 6: Final answer
    x = 16,871.07

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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.