Home / 13,775.32-19,003.26-8,182.36

Finding the Fourth Proportional to 13,775.32, 19,003.26 and 8,182.36

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Solution

The fourth proportional to 13,775.32, 19,003.26 and 8,182.36 is: 11,287.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.32 : 19,003.26 = 8,182.36 : x
  2. Step 2: Convert to fraction form
    13,775.32/19,003.26 = 8,182.36/x
  3. Step 3: Cross multiply
    13,775.32x = 19,003.26 × 8,182.36
  4. Step 4: Simplify right side
    13,775.32x = 155,491,514.49
  5. Step 5: Solve for x
    x = 155,491,514.49/13,775.32
  6. Step 6: Final answer
    x = 11,287.69

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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.