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Finding the Fourth Proportional to 7,412.49, 11,109.18 and 5,549.01

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Solution

The fourth proportional to 7,412.49, 11,109.18 and 5,549.01 is: 8,316.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.49 : 11,109.18 = 5,549.01 : x
  2. Step 2: Convert to fraction form
    7,412.49/11,109.18 = 5,549.01/x
  3. Step 3: Cross multiply
    7,412.49x = 11,109.18 × 5,549.01
  4. Step 4: Simplify right side
    7,412.49x = 61,644,950.91
  5. Step 5: Solve for x
    x = 61,644,950.91/7,412.49
  6. Step 6: Final answer
    x = 8,316.36

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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.