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Finding the Fourth Proportional to 18,403.54, 27,605.19 and 11,010.07

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Solution

The fourth proportional to 18,403.54, 27,605.19 and 11,010.07 is: 16,515.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.54 : 27,605.19 = 11,010.07 : x
  2. Step 2: Convert to fraction form
    18,403.54/27,605.19 = 11,010.07/x
  3. Step 3: Cross multiply
    18,403.54x = 27,605.19 × 11,010.07
  4. Step 4: Simplify right side
    18,403.54x = 303,935,074.26
  5. Step 5: Solve for x
    x = 303,935,074.26/18,403.54
  6. Step 6: Final answer
    x = 16,515.03

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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.