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Finding the Fourth Proportional to 16,216.80, 24,328.80 and 7,449.60

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Solution

The fourth proportional to 16,216.80, 24,328.80 and 7,449.60 is: 11,176.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,216.80 : 24,328.80 = 7,449.60 : x
  2. Step 2: Convert to fraction form
    16,216.80/24,328.80 = 7,449.60/x
  3. Step 3: Cross multiply
    16,216.80x = 24,328.80 × 7,449.60
  4. Step 4: Simplify right side
    16,216.80x = 181,239,828.48
  5. Step 5: Solve for x
    x = 181,239,828.48/16,216.80
  6. Step 6: Final answer
    x = 11,176.05

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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.