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Finding the Fourth Proportional to 11,998.55, 17,997.83 and 6,454.51

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Solution

The fourth proportional to 11,998.55, 17,997.83 and 6,454.51 is: 9,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.55 : 17,997.83 = 6,454.51 : x
  2. Step 2: Convert to fraction form
    11,998.55/17,997.83 = 6,454.51/x
  3. Step 3: Cross multiply
    11,998.55x = 17,997.83 × 6,454.51
  4. Step 4: Simplify right side
    11,998.55x = 116,167,173.71
  5. Step 5: Solve for x
    x = 116,167,173.71/11,998.55
  6. Step 6: Final answer
    x = 9,681.77

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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.