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Finding the Fourth Proportional to 7,140.10, 10,710.15 and 6,046.60

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Solution

The fourth proportional to 7,140.10, 10,710.15 and 6,046.60 is: 9,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.10 : 10,710.15 = 6,046.60 : x
  2. Step 2: Convert to fraction form
    7,140.10/10,710.15 = 6,046.60/x
  3. Step 3: Cross multiply
    7,140.10x = 10,710.15 × 6,046.60
  4. Step 4: Simplify right side
    7,140.10x = 64,759,992.99
  5. Step 5: Solve for x
    x = 64,759,992.99/7,140.10
  6. Step 6: Final answer
    x = 9,069.90

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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.