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Finding the Fourth Proportional to 7,465.20, 11,203.20 and 4,174.80

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Solution

The fourth proportional to 7,465.20, 11,203.20 and 4,174.80 is: 6,265.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,465.20 : 11,203.20 = 4,174.80 : x
  2. Step 2: Convert to fraction form
    7,465.20/11,203.20 = 4,174.80/x
  3. Step 3: Cross multiply
    7,465.20x = 11,203.20 × 4,174.80
  4. Step 4: Simplify right side
    7,465.20x = 46,771,119.36
  5. Step 5: Solve for x
    x = 46,771,119.36/7,465.20
  6. Step 6: Final answer
    x = 6,265.22

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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.