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Finding the Fourth Proportional to 10,911.61, 15,046.10 and 7,368.67

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Solution

The fourth proportional to 10,911.61, 15,046.10 and 7,368.67 is: 10,160.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.61 : 15,046.10 = 7,368.67 : x
  2. Step 2: Convert to fraction form
    10,911.61/15,046.10 = 7,368.67/x
  3. Step 3: Cross multiply
    10,911.61x = 15,046.10 × 7,368.67
  4. Step 4: Simplify right side
    10,911.61x = 110,869,796.73
  5. Step 5: Solve for x
    x = 110,869,796.73/10,911.61
  6. Step 6: Final answer
    x = 10,160.72

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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.