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Finding the Fourth Proportional to 13,193.84, 18,207.36 and 7,225.52

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Solution

The fourth proportional to 13,193.84, 18,207.36 and 7,225.52 is: 9,971.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.84 : 18,207.36 = 7,225.52 : x
  2. Step 2: Convert to fraction form
    13,193.84/18,207.36 = 7,225.52/x
  3. Step 3: Cross multiply
    13,193.84x = 18,207.36 × 7,225.52
  4. Step 4: Simplify right side
    13,193.84x = 131,557,643.83
  5. Step 5: Solve for x
    x = 131,557,643.83/13,193.84
  6. Step 6: Final answer
    x = 9,971.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.