Home / 7,220.40-10,830.60-6,163.35

Finding the Fourth Proportional to 7,220.40, 10,830.60 and 6,163.35

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Solution

The fourth proportional to 7,220.40, 10,830.60 and 6,163.35 is: 9,245.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.40 : 10,830.60 = 6,163.35 : x
  2. Step 2: Convert to fraction form
    7,220.40/10,830.60 = 6,163.35/x
  3. Step 3: Cross multiply
    7,220.40x = 10,830.60 × 6,163.35
  4. Step 4: Simplify right side
    7,220.40x = 66,752,778.51
  5. Step 5: Solve for x
    x = 66,752,778.51/7,220.40
  6. Step 6: Final answer
    x = 9,245.03

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Half scale
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Double scale
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Similar ratio
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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.