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Finding the Fourth Proportional to 7,332.40, 10,998.60 and 6,122.80

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Solution

The fourth proportional to 7,332.40, 10,998.60 and 6,122.80 is: 9,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332.40 : 10,998.60 = 6,122.80 : x
  2. Step 2: Convert to fraction form
    7,332.40/10,998.60 = 6,122.80/x
  3. Step 3: Cross multiply
    7,332.40x = 10,998.60 × 6,122.80
  4. Step 4: Simplify right side
    7,332.40x = 67,342,228.08
  5. Step 5: Solve for x
    x = 67,342,228.08/7,332.40
  6. Step 6: Final answer
    x = 9,184.20

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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.