Home / 13,554.46-20,198.66-13,108.56

Finding the Fourth Proportional to 13,554.46, 20,198.66 and 13,108.56

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Solution

The fourth proportional to 13,554.46, 20,198.66 and 13,108.56 is: 19,534.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.46 : 20,198.66 = 13,108.56 : x
  2. Step 2: Convert to fraction form
    13,554.46/20,198.66 = 13,108.56/x
  3. Step 3: Cross multiply
    13,554.46x = 20,198.66 × 13,108.56
  4. Step 4: Simplify right side
    13,554.46x = 264,775,346.53
  5. Step 5: Solve for x
    x = 264,775,346.53/13,554.46
  6. Step 6: Final answer
    x = 19,534.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.