Home / 14,130.12-21,194.82-6,739.80

Finding the Fourth Proportional to 14,130.12, 21,194.82 and 6,739.80

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Solution

The fourth proportional to 14,130.12, 21,194.82 and 6,739.80 is: 10,109.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.12 : 21,194.82 = 6,739.80 : x
  2. Step 2: Convert to fraction form
    14,130.12/21,194.82 = 6,739.80/x
  3. Step 3: Cross multiply
    14,130.12x = 21,194.82 × 6,739.80
  4. Step 4: Simplify right side
    14,130.12x = 142,848,847.84
  5. Step 5: Solve for x
    x = 142,848,847.84/14,130.12
  6. Step 6: Final answer
    x = 10,109.53

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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.