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Finding the Fourth Proportional to 11,133.72, 15,363.42 and 6,656.58

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Solution

The fourth proportional to 11,133.72, 15,363.42 and 6,656.58 is: 9,185.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.72 : 15,363.42 = 6,656.58 : x
  2. Step 2: Convert to fraction form
    11,133.72/15,363.42 = 6,656.58/x
  3. Step 3: Cross multiply
    11,133.72x = 15,363.42 × 6,656.58
  4. Step 4: Simplify right side
    11,133.72x = 102,267,834.30
  5. Step 5: Solve for x
    x = 102,267,834.30/11,133.72
  6. Step 6: Final answer
    x = 9,185.41

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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.