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Finding the Fourth Proportional to 7,104.80, 10,657.20 and 5,824.80

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Solution

The fourth proportional to 7,104.80, 10,657.20 and 5,824.80 is: 8,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.80 : 10,657.20 = 5,824.80 : x
  2. Step 2: Convert to fraction form
    7,104.80/10,657.20 = 5,824.80/x
  3. Step 3: Cross multiply
    7,104.80x = 10,657.20 × 5,824.80
  4. Step 4: Simplify right side
    7,104.80x = 62,076,058.56
  5. Step 5: Solve for x
    x = 62,076,058.56/7,104.80
  6. Step 6: Final answer
    x = 8,737.20

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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.