Home / 13,458.73-20,191.14-4,099.59

Finding the Fourth Proportional to 13,458.73, 20,191.14 and 4,099.59

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Solution

The fourth proportional to 13,458.73, 20,191.14 and 4,099.59 is: 6,150.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.73 : 20,191.14 = 4,099.59 : x
  2. Step 2: Convert to fraction form
    13,458.73/20,191.14 = 4,099.59/x
  3. Step 3: Cross multiply
    13,458.73x = 20,191.14 × 4,099.59
  4. Step 4: Simplify right side
    13,458.73x = 82,775,395.63
  5. Step 5: Solve for x
    x = 82,775,395.63/13,458.73
  6. Step 6: Final answer
    x = 6,150.31

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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.