Home / 6,665.53-9,994.93-2,221.62

Finding the Fourth Proportional to 6,665.53, 9,994.93 and 2,221.62

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Solution

The fourth proportional to 6,665.53, 9,994.93 and 2,221.62 is: 3,331.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.53 : 9,994.93 = 2,221.62 : x
  2. Step 2: Convert to fraction form
    6,665.53/9,994.93 = 2,221.62/x
  3. Step 3: Cross multiply
    6,665.53x = 9,994.93 × 2,221.62
  4. Step 4: Simplify right side
    6,665.53x = 22,204,886.41
  5. Step 5: Solve for x
    x = 22,204,886.41/6,665.53
  6. Step 6: Final answer
    x = 3,331.30

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Half scale
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Double scale
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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.