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Finding the Fourth Proportional to 7,170.88, 10,746.60 and 5,328.94

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Solution

The fourth proportional to 7,170.88, 10,746.60 and 5,328.94 is: 7,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.88 : 10,746.60 = 5,328.94 : x
  2. Step 2: Convert to fraction form
    7,170.88/10,746.60 = 5,328.94/x
  3. Step 3: Cross multiply
    7,170.88x = 10,746.60 × 5,328.94
  4. Step 4: Simplify right side
    7,170.88x = 57,267,986.60
  5. Step 5: Solve for x
    x = 57,267,986.60/7,170.88
  6. Step 6: Final answer
    x = 7,986.19

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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.