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Finding the Fourth Proportional to 6,750.80, 10,114.05 and 5,778.80

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Solution

The fourth proportional to 6,750.80, 10,114.05 and 5,778.80 is: 8,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.80 : 10,114.05 = 5,778.80 : x
  2. Step 2: Convert to fraction form
    6,750.80/10,114.05 = 5,778.80/x
  3. Step 3: Cross multiply
    6,750.80x = 10,114.05 × 5,778.80
  4. Step 4: Simplify right side
    6,750.80x = 58,447,072.14
  5. Step 5: Solve for x
    x = 58,447,072.14/6,750.80
  6. Step 6: Final answer
    x = 8,657.80

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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.