Home / 7,850.89-11,750.70-5,770.35

Finding the Fourth Proportional to 7,850.89, 11,750.70 and 5,770.35

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Solution

The fourth proportional to 7,850.89, 11,750.70 and 5,770.35 is: 8,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.89 : 11,750.70 = 5,770.35 : x
  2. Step 2: Convert to fraction form
    7,850.89/11,750.70 = 5,770.35/x
  3. Step 3: Cross multiply
    7,850.89x = 11,750.70 × 5,770.35
  4. Step 4: Simplify right side
    7,850.89x = 67,805,651.75
  5. Step 5: Solve for x
    x = 67,805,651.75/7,850.89
  6. Step 6: Final answer
    x = 8,636.68

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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.