Home / 6,665.36-9,998.98-2,221.56

Finding the Fourth Proportional to 6,665.36, 9,998.98 and 2,221.56

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Solution

The fourth proportional to 6,665.36, 9,998.98 and 2,221.56 is: 3,332.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.36 : 9,998.98 = 2,221.56 : x
  2. Step 2: Convert to fraction form
    6,665.36/9,998.98 = 2,221.56/x
  3. Step 3: Cross multiply
    6,665.36x = 9,998.98 × 2,221.56
  4. Step 4: Simplify right side
    6,665.36x = 22,213,328.45
  5. Step 5: Solve for x
    x = 22,213,328.45/6,665.36
  6. Step 6: Final answer
    x = 3,332.65

Related Problems

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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.