Home / 7,677.96-11,518.43-2,997.78

Finding the Fourth Proportional to 7,677.96, 11,518.43 and 2,997.78

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Solution

The fourth proportional to 7,677.96, 11,518.43 and 2,997.78 is: 4,497.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.96 : 11,518.43 = 2,997.78 : x
  2. Step 2: Convert to fraction form
    7,677.96/11,518.43 = 2,997.78/x
  3. Step 3: Cross multiply
    7,677.96x = 11,518.43 × 2,997.78
  4. Step 4: Simplify right side
    7,677.96x = 34,529,719.09
  5. Step 5: Solve for x
    x = 34,529,719.09/7,677.96
  6. Step 6: Final answer
    x = 4,497.25

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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.