Home / 13,308.87-19,975.59-6,739.65

Finding the Fourth Proportional to 13,308.87, 19,975.59 and 6,739.65

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Solution

The fourth proportional to 13,308.87, 19,975.59 and 6,739.65 is: 10,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.87 : 19,975.59 = 6,739.65 : x
  2. Step 2: Convert to fraction form
    13,308.87/19,975.59 = 6,739.65/x
  3. Step 3: Cross multiply
    13,308.87x = 19,975.59 × 6,739.65
  4. Step 4: Simplify right side
    13,308.87x = 134,628,485.14
  5. Step 5: Solve for x
    x = 134,628,485.14/13,308.87
  6. Step 6: Final answer
    x = 10,115.70

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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.