Home / 18,787.84-28,185.00-6,309.07

Finding the Fourth Proportional to 18,787.84, 28,185.00 and 6,309.07

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Solution

The fourth proportional to 18,787.84, 28,185.00 and 6,309.07 is: 9,464.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.84 : 28,185.00 = 6,309.07 : x
  2. Step 2: Convert to fraction form
    18,787.84/28,185.00 = 6,309.07/x
  3. Step 3: Cross multiply
    18,787.84x = 28,185.00 × 6,309.07
  4. Step 4: Simplify right side
    18,787.84x = 177,821,091.15
  5. Step 5: Solve for x
    x = 177,821,091.15/18,787.84
  6. Step 6: Final answer
    x = 9,464.69

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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.