Home / 7,918.69-11,873.23-5,450.80

Finding the Fourth Proportional to 7,918.69, 11,873.23 and 5,450.80

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Solution

The fourth proportional to 7,918.69, 11,873.23 and 5,450.80 is: 8,172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.69 : 11,873.23 = 5,450.80 : x
  2. Step 2: Convert to fraction form
    7,918.69/11,873.23 = 5,450.80/x
  3. Step 3: Cross multiply
    7,918.69x = 11,873.23 × 5,450.80
  4. Step 4: Simplify right side
    7,918.69x = 64,718,602.08
  5. Step 5: Solve for x
    x = 64,718,602.08/7,918.69
  6. Step 6: Final answer
    x = 8,172.89

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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.