Home / 18,118.40-25,003.44-10,160.64

Finding the Fourth Proportional to 18,118.40, 25,003.44 and 10,160.64

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Solution

The fourth proportional to 18,118.40, 25,003.44 and 10,160.64 is: 14,021.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.40 : 25,003.44 = 10,160.64 : x
  2. Step 2: Convert to fraction form
    18,118.40/25,003.44 = 10,160.64/x
  3. Step 3: Cross multiply
    18,118.40x = 25,003.44 × 10,160.64
  4. Step 4: Simplify right side
    18,118.40x = 254,050,952.60
  5. Step 5: Solve for x
    x = 254,050,952.60/18,118.40
  6. Step 6: Final answer
    x = 14,021.71

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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.