Home / 13,986.24-20,967.48-6,190.80

Finding the Fourth Proportional to 13,986.24, 20,967.48 and 6,190.80

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Solution

The fourth proportional to 13,986.24, 20,967.48 and 6,190.80 is: 9,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.24 : 20,967.48 = 6,190.80 : x
  2. Step 2: Convert to fraction form
    13,986.24/20,967.48 = 6,190.80/x
  3. Step 3: Cross multiply
    13,986.24x = 20,967.48 × 6,190.80
  4. Step 4: Simplify right side
    13,986.24x = 129,805,475.18
  5. Step 5: Solve for x
    x = 129,805,475.18/13,986.24
  6. Step 6: Final answer
    x = 9,280.94

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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.