Home / 9,538.50-13,163.13-5,346.75

Finding the Fourth Proportional to 9,538.50, 13,163.13 and 5,346.75

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Solution

The fourth proportional to 9,538.50, 13,163.13 and 5,346.75 is: 7,378.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,538.50 : 13,163.13 = 5,346.75 : x
  2. Step 2: Convert to fraction form
    9,538.50/13,163.13 = 5,346.75/x
  3. Step 3: Cross multiply
    9,538.50x = 13,163.13 × 5,346.75
  4. Step 4: Simplify right side
    9,538.50x = 70,379,965.33
  5. Step 5: Solve for x
    x = 70,379,965.33/9,538.50
  6. Step 6: Final answer
    x = 7,378.52

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Half scale
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Double scale
Find fourth proportional to 9,539.50, 13,164.51 and 5,347.75
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.