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Finding the Fourth Proportional to 16,477.20, 24,740.10 and 12,783.60

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Solution

The fourth proportional to 16,477.20, 24,740.10 and 12,783.60 is: 19,194.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,477.20 : 24,740.10 = 12,783.60 : x
  2. Step 2: Convert to fraction form
    16,477.20/24,740.10 = 12,783.60/x
  3. Step 3: Cross multiply
    16,477.20x = 24,740.10 × 12,783.60
  4. Step 4: Simplify right side
    16,477.20x = 316,267,542.36
  5. Step 5: Solve for x
    x = 316,267,542.36/16,477.20
  6. Step 6: Final answer
    x = 19,194.25

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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.