Home / 18,814.44-25,944.54-13,147.12

Finding the Fourth Proportional to 18,814.44, 25,944.54 and 13,147.12

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Solution

The fourth proportional to 18,814.44, 25,944.54 and 13,147.12 is: 18,129.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.44 : 25,944.54 = 13,147.12 : x
  2. Step 2: Convert to fraction form
    18,814.44/25,944.54 = 13,147.12/x
  3. Step 3: Cross multiply
    18,814.44x = 25,944.54 × 13,147.12
  4. Step 4: Simplify right side
    18,814.44x = 341,095,980.72
  5. Step 5: Solve for x
    x = 341,095,980.72/18,814.44
  6. Step 6: Final answer
    x = 18,129.48

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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.