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Finding the Fourth Proportional to 11,184.80, 16,777.20 and 7,248.20

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Solution

The fourth proportional to 11,184.80, 16,777.20 and 7,248.20 is: 10,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,184.80 : 16,777.20 = 7,248.20 : x
  2. Step 2: Convert to fraction form
    11,184.80/16,777.20 = 7,248.20/x
  3. Step 3: Cross multiply
    11,184.80x = 16,777.20 × 7,248.20
  4. Step 4: Simplify right side
    11,184.80x = 121,604,501.04
  5. Step 5: Solve for x
    x = 121,604,501.04/11,184.80
  6. Step 6: Final answer
    x = 10,872.30

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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.