Home / 13,308.58-19,975.14-6,739.42

Finding the Fourth Proportional to 13,308.58, 19,975.14 and 6,739.42

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Solution

The fourth proportional to 13,308.58, 19,975.14 and 6,739.42 is: 10,115.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.58 : 19,975.14 = 6,739.42 : x
  2. Step 2: Convert to fraction form
    13,308.58/19,975.14 = 6,739.42/x
  3. Step 3: Cross multiply
    13,308.58x = 19,975.14 × 6,739.42
  4. Step 4: Simplify right side
    13,308.58x = 134,620,858.02
  5. Step 5: Solve for x
    x = 134,620,858.02/13,308.58
  6. Step 6: Final answer
    x = 10,115.34

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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.