Home / 13,770.84-20,630.34-6,850.20

Finding the Fourth Proportional to 13,770.84, 20,630.34 and 6,850.20

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Solution

The fourth proportional to 13,770.84, 20,630.34 and 6,850.20 is: 10,262.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.84 : 20,630.34 = 6,850.20 : x
  2. Step 2: Convert to fraction form
    13,770.84/20,630.34 = 6,850.20/x
  3. Step 3: Cross multiply
    13,770.84x = 20,630.34 × 6,850.20
  4. Step 4: Simplify right side
    13,770.84x = 141,321,955.07
  5. Step 5: Solve for x
    x = 141,321,955.07/13,770.84
  6. Step 6: Final answer
    x = 10,262.41

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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.