Home / 6,768.10-10,128.12-4,134.80

Finding the Fourth Proportional to 6,768.10, 10,128.12 and 4,134.80

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Solution

The fourth proportional to 6,768.10, 10,128.12 and 4,134.80 is: 6,187.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,768.10 : 10,128.12 = 4,134.80 : x
  2. Step 2: Convert to fraction form
    6,768.10/10,128.12 = 4,134.80/x
  3. Step 3: Cross multiply
    6,768.10x = 10,128.12 × 4,134.80
  4. Step 4: Simplify right side
    6,768.10x = 41,877,750.58
  5. Step 5: Solve for x
    x = 41,877,750.58/6,768.10
  6. Step 6: Final answer
    x = 6,187.52

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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.