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Finding the Fourth Proportional to 7,115.70, 10,673.55 and 7,115.70

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Solution

The fourth proportional to 7,115.70, 10,673.55 and 7,115.70 is: 10,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.70 : 10,673.55 = 7,115.70 : x
  2. Step 2: Convert to fraction form
    7,115.70/10,673.55 = 7,115.70/x
  3. Step 3: Cross multiply
    7,115.70x = 10,673.55 × 7,115.70
  4. Step 4: Simplify right side
    7,115.70x = 75,949,779.74
  5. Step 5: Solve for x
    x = 75,949,779.74/7,115.70
  6. Step 6: Final answer
    x = 10,673.55

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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.