Home / 7,918.17-10,919.22-5,085.09

Finding the Fourth Proportional to 7,918.17, 10,919.22 and 5,085.09

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Solution

The fourth proportional to 7,918.17, 10,919.22 and 5,085.09 is: 7,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.17 : 10,919.22 = 5,085.09 : x
  2. Step 2: Convert to fraction form
    7,918.17/10,919.22 = 5,085.09/x
  3. Step 3: Cross multiply
    7,918.17x = 10,919.22 × 5,085.09
  4. Step 4: Simplify right side
    7,918.17x = 55,525,216.43
  5. Step 5: Solve for x
    x = 55,525,216.43/7,918.17
  6. Step 6: Final answer
    x = 7,012.38

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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.