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Finding the Fourth Proportional to 6,850.95, 10,281.30 and 6,189.99

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Solution

The fourth proportional to 6,850.95, 10,281.30 and 6,189.99 is: 9,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,850.95 : 10,281.30 = 6,189.99 : x
  2. Step 2: Convert to fraction form
    6,850.95/10,281.30 = 6,189.99/x
  3. Step 3: Cross multiply
    6,850.95x = 10,281.30 × 6,189.99
  4. Step 4: Simplify right side
    6,850.95x = 63,641,144.19
  5. Step 5: Solve for x
    x = 63,641,144.19/6,850.95
  6. Step 6: Final answer
    x = 9,289.39

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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.