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Finding the Fourth Proportional to 18,552.51, 27,830.34 and 7,457.76

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Solution

The fourth proportional to 18,552.51, 27,830.34 and 7,457.76 is: 11,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,552.51 : 27,830.34 = 7,457.76 : x
  2. Step 2: Convert to fraction form
    18,552.51/27,830.34 = 7,457.76/x
  3. Step 3: Cross multiply
    18,552.51x = 27,830.34 × 7,457.76
  4. Step 4: Simplify right side
    18,552.51x = 207,551,996.44
  5. Step 5: Solve for x
    x = 207,551,996.44/18,552.51
  6. Step 6: Final answer
    x = 11,187.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.