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Finding the Fourth Proportional to 9,365.40, 12,924.30 and 5,173.62

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Solution

The fourth proportional to 9,365.40, 12,924.30 and 5,173.62 is: 7,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.40 : 12,924.30 = 5,173.62 : x
  2. Step 2: Convert to fraction form
    9,365.40/12,924.30 = 5,173.62/x
  3. Step 3: Cross multiply
    9,365.40x = 12,924.30 × 5,173.62
  4. Step 4: Simplify right side
    9,365.40x = 66,865,416.97
  5. Step 5: Solve for x
    x = 66,865,416.97/9,365.40
  6. Step 6: Final answer
    x = 7,139.62

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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.