Home / 13,979.07-20,968.43-5,659.02

Finding the Fourth Proportional to 13,979.07, 20,968.43 and 5,659.02

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Solution

The fourth proportional to 13,979.07, 20,968.43 and 5,659.02 is: 8,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.07 : 20,968.43 = 5,659.02 : x
  2. Step 2: Convert to fraction form
    13,979.07/20,968.43 = 5,659.02/x
  3. Step 3: Cross multiply
    13,979.07x = 20,968.43 × 5,659.02
  4. Step 4: Simplify right side
    13,979.07x = 118,660,736.44
  5. Step 5: Solve for x
    x = 118,660,736.44/13,979.07
  6. Step 6: Final answer
    x = 8,488.46

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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.