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Finding the Fourth Proportional to 7,356.60, 11,034.90 and 6,870.60

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Solution

The fourth proportional to 7,356.60, 11,034.90 and 6,870.60 is: 10,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,356.60 : 11,034.90 = 6,870.60 : x
  2. Step 2: Convert to fraction form
    7,356.60/11,034.90 = 6,870.60/x
  3. Step 3: Cross multiply
    7,356.60x = 11,034.90 × 6,870.60
  4. Step 4: Simplify right side
    7,356.60x = 75,816,383.94
  5. Step 5: Solve for x
    x = 75,816,383.94/7,356.60
  6. Step 6: Final answer
    x = 10,305.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.