Home / 11,561.40-17,344.80-3,770.28

Finding the Fourth Proportional to 11,561.40, 17,344.80 and 3,770.28

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Solution

The fourth proportional to 11,561.40, 17,344.80 and 3,770.28 is: 5,656.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,561.40 : 17,344.80 = 3,770.28 : x
  2. Step 2: Convert to fraction form
    11,561.40/17,344.80 = 3,770.28/x
  3. Step 3: Cross multiply
    11,561.40x = 17,344.80 × 3,770.28
  4. Step 4: Simplify right side
    11,561.40x = 65,394,752.54
  5. Step 5: Solve for x
    x = 65,394,752.54/11,561.40
  6. Step 6: Final answer
    x = 5,656.30

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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.