Home / 10,918.26-15,057.90-6,940.62

Finding the Fourth Proportional to 10,918.26, 15,057.90 and 6,940.62

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Solution

The fourth proportional to 10,918.26, 15,057.90 and 6,940.62 is: 9,572.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.26 : 15,057.90 = 6,940.62 : x
  2. Step 2: Convert to fraction form
    10,918.26/15,057.90 = 6,940.62/x
  3. Step 3: Cross multiply
    10,918.26x = 15,057.90 × 6,940.62
  4. Step 4: Simplify right side
    10,918.26x = 104,511,161.90
  5. Step 5: Solve for x
    x = 104,511,161.90/10,918.26
  6. Step 6: Final answer
    x = 9,572.14

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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.