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Finding the Fourth Proportional to 7,803.60, 11,692.44 and 5,490.24

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Solution

The fourth proportional to 7,803.60, 11,692.44 and 5,490.24 is: 8,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.60 : 11,692.44 = 5,490.24 : x
  2. Step 2: Convert to fraction form
    7,803.60/11,692.44 = 5,490.24/x
  3. Step 3: Cross multiply
    7,803.60x = 11,692.44 × 5,490.24
  4. Step 4: Simplify right side
    7,803.60x = 64,194,301.79
  5. Step 5: Solve for x
    x = 64,194,301.79/7,803.60
  6. Step 6: Final answer
    x = 8,226.24

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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.