Home / 18,120.69-25,008.35-10,164.33

Finding the Fourth Proportional to 18,120.69, 25,008.35 and 10,164.33

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Solution

The fourth proportional to 18,120.69, 25,008.35 and 10,164.33 is: 14,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.69 : 25,008.35 = 10,164.33 : x
  2. Step 2: Convert to fraction form
    18,120.69/25,008.35 = 10,164.33/x
  3. Step 3: Cross multiply
    18,120.69x = 25,008.35 × 10,164.33
  4. Step 4: Simplify right side
    18,120.69x = 254,193,071.33
  5. Step 5: Solve for x
    x = 254,193,071.33/18,120.69
  6. Step 6: Final answer
    x = 14,027.78

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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.