Home / 13,770.19-20,656.30-3,910.26

Finding the Fourth Proportional to 13,770.19, 20,656.30 and 3,910.26

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Solution

The fourth proportional to 13,770.19, 20,656.30 and 3,910.26 is: 5,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.19 : 20,656.30 = 3,910.26 : x
  2. Step 2: Convert to fraction form
    13,770.19/20,656.30 = 3,910.26/x
  3. Step 3: Cross multiply
    13,770.19x = 20,656.30 × 3,910.26
  4. Step 4: Simplify right side
    13,770.19x = 80,771,503.64
  5. Step 5: Solve for x
    x = 80,771,503.64/13,770.19
  6. Step 6: Final answer
    x = 5,865.68

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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.