Home / 7,837.99-10,788.26-7,090.36

Finding the Fourth Proportional to 7,837.99, 10,788.26 and 7,090.36

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Solution

The fourth proportional to 7,837.99, 10,788.26 and 7,090.36 is: 9,759.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.99 : 10,788.26 = 7,090.36 : x
  2. Step 2: Convert to fraction form
    7,837.99/10,788.26 = 7,090.36/x
  3. Step 3: Cross multiply
    7,837.99x = 10,788.26 × 7,090.36
  4. Step 4: Simplify right side
    7,837.99x = 76,492,584.75
  5. Step 5: Solve for x
    x = 76,492,584.75/7,837.99
  6. Step 6: Final answer
    x = 9,759.21

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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.