Home / 13,984.80-20,977.25-5,664.97

Finding the Fourth Proportional to 13,984.80, 20,977.25 and 5,664.97

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Solution

The fourth proportional to 13,984.80, 20,977.25 and 5,664.97 is: 8,497.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.80 : 20,977.25 = 5,664.97 : x
  2. Step 2: Convert to fraction form
    13,984.80/20,977.25 = 5,664.97/x
  3. Step 3: Cross multiply
    13,984.80x = 20,977.25 × 5,664.97
  4. Step 4: Simplify right side
    13,984.80x = 118,835,521.69
  5. Step 5: Solve for x
    x = 118,835,521.69/13,984.80
  6. Step 6: Final answer
    x = 8,497.48

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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.