Home / 18,816.35-28,218.76-13,010.27

Finding the Fourth Proportional to 18,816.35, 28,218.76 and 13,010.27

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Solution

The fourth proportional to 18,816.35, 28,218.76 and 13,010.27 is: 19,511.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.35 : 28,218.76 = 13,010.27 : x
  2. Step 2: Convert to fraction form
    18,816.35/28,218.76 = 13,010.27/x
  3. Step 3: Cross multiply
    18,816.35x = 28,218.76 × 13,010.27
  4. Step 4: Simplify right side
    18,816.35x = 367,133,513.05
  5. Step 5: Solve for x
    x = 367,133,513.05/18,816.35
  6. Step 6: Final answer
    x = 19,511.41

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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.