Home / 18,755.69-28,121.63-9,393.17

Finding the Fourth Proportional to 18,755.69, 28,121.63 and 9,393.17

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Solution

The fourth proportional to 18,755.69, 28,121.63 and 9,393.17 is: 14,083.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.69 : 28,121.63 = 9,393.17 : x
  2. Step 2: Convert to fraction form
    18,755.69/28,121.63 = 9,393.17/x
  3. Step 3: Cross multiply
    18,755.69x = 28,121.63 × 9,393.17
  4. Step 4: Simplify right side
    18,755.69x = 264,151,063.69
  5. Step 5: Solve for x
    x = 264,151,063.69/18,755.69
  6. Step 6: Final answer
    x = 14,083.79

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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.