Home / 11,837.78-17,739.75-8,693.12

Finding the Fourth Proportional to 11,837.78, 17,739.75 and 8,693.12

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Solution

The fourth proportional to 11,837.78, 17,739.75 and 8,693.12 is: 13,027.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,837.78 : 17,739.75 = 8,693.12 : x
  2. Step 2: Convert to fraction form
    11,837.78/17,739.75 = 8,693.12/x
  3. Step 3: Cross multiply
    11,837.78x = 17,739.75 × 8,693.12
  4. Step 4: Simplify right side
    11,837.78x = 154,213,775.52
  5. Step 5: Solve for x
    x = 154,213,775.52/11,837.78
  6. Step 6: Final answer
    x = 13,027.25

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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.