Home / 10,121.14-13,968.87-6,144.90

Finding the Fourth Proportional to 10,121.14, 13,968.87 and 6,144.90

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Solution

The fourth proportional to 10,121.14, 13,968.87 and 6,144.90 is: 8,480.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.14 : 13,968.87 = 6,144.90 : x
  2. Step 2: Convert to fraction form
    10,121.14/13,968.87 = 6,144.90/x
  3. Step 3: Cross multiply
    10,121.14x = 13,968.87 × 6,144.90
  4. Step 4: Simplify right side
    10,121.14x = 85,837,309.26
  5. Step 5: Solve for x
    x = 85,837,309.26/10,121.14
  6. Step 6: Final answer
    x = 8,480.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.