Home / 7,912.57-10,918.62-4,555.06

Finding the Fourth Proportional to 7,912.57, 10,918.62 and 4,555.06

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Solution

The fourth proportional to 7,912.57, 10,918.62 and 4,555.06 is: 6,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.57 : 10,918.62 = 4,555.06 : x
  2. Step 2: Convert to fraction form
    7,912.57/10,918.62 = 4,555.06/x
  3. Step 3: Cross multiply
    7,912.57x = 10,918.62 × 4,555.06
  4. Step 4: Simplify right side
    7,912.57x = 49,734,914.62
  5. Step 5: Solve for x
    x = 49,734,914.62/7,912.57
  6. Step 6: Final answer
    x = 6,285.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.