Home / 14,741.40-20,321.64-11,198.46

Finding the Fourth Proportional to 14,741.40, 20,321.64 and 11,198.46

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Solution

The fourth proportional to 14,741.40, 20,321.64 and 11,198.46 is: 15,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,741.40 : 20,321.64 = 11,198.46 : x
  2. Step 2: Convert to fraction form
    14,741.40/20,321.64 = 11,198.46/x
  3. Step 3: Cross multiply
    14,741.40x = 20,321.64 × 11,198.46
  4. Step 4: Simplify right side
    14,741.40x = 227,571,072.67
  5. Step 5: Solve for x
    x = 227,571,072.67/14,741.40
  6. Step 6: Final answer
    x = 15,437.55

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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.