Home / 9,770.82-14,650.75-4,220.70

Finding the Fourth Proportional to 9,770.82, 14,650.75 and 4,220.70

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Solution

The fourth proportional to 9,770.82, 14,650.75 and 4,220.70 is: 6,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,770.82 : 14,650.75 = 4,220.70 : x
  2. Step 2: Convert to fraction form
    9,770.82/14,650.75 = 4,220.70/x
  3. Step 3: Cross multiply
    9,770.82x = 14,650.75 × 4,220.70
  4. Step 4: Simplify right side
    9,770.82x = 61,836,420.53
  5. Step 5: Solve for x
    x = 61,836,420.53/9,770.82
  6. Step 6: Final answer
    x = 6,328.68

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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.