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Finding the Fourth Proportional to 7,312.60, 10,968.90 and 7,312.60

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Solution

The fourth proportional to 7,312.60, 10,968.90 and 7,312.60 is: 10,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.60 : 10,968.90 = 7,312.60 : x
  2. Step 2: Convert to fraction form
    7,312.60/10,968.90 = 7,312.60/x
  3. Step 3: Cross multiply
    7,312.60x = 10,968.90 × 7,312.60
  4. Step 4: Simplify right side
    7,312.60x = 80,211,178.14
  5. Step 5: Solve for x
    x = 80,211,178.14/7,312.60
  6. Step 6: Final answer
    x = 10,968.90

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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.