Home / 13,133.34-18,149.67-11,675.34

Finding the Fourth Proportional to 13,133.34, 18,149.67 and 11,675.34

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Solution

The fourth proportional to 13,133.34, 18,149.67 and 11,675.34 is: 16,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.34 : 18,149.67 = 11,675.34 : x
  2. Step 2: Convert to fraction form
    13,133.34/18,149.67 = 11,675.34/x
  3. Step 3: Cross multiply
    13,133.34x = 18,149.67 × 11,675.34
  4. Step 4: Simplify right side
    13,133.34x = 211,903,568.14
  5. Step 5: Solve for x
    x = 211,903,568.14/13,133.34
  6. Step 6: Final answer
    x = 16,134.78

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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.