Home / 18,839.49-28,260.36-6,190.09

Finding the Fourth Proportional to 18,839.49, 28,260.36 and 6,190.09

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Solution

The fourth proportional to 18,839.49, 28,260.36 and 6,190.09 is: 9,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.49 : 28,260.36 = 6,190.09 : x
  2. Step 2: Convert to fraction form
    18,839.49/28,260.36 = 6,190.09/x
  3. Step 3: Cross multiply
    18,839.49x = 28,260.36 × 6,190.09
  4. Step 4: Simplify right side
    18,839.49x = 174,934,101.18
  5. Step 5: Solve for x
    x = 174,934,101.18/18,839.49
  6. Step 6: Final answer
    x = 9,285.50

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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.