Home / 12,623.21-18,934.86-3,858.10

Finding the Fourth Proportional to 12,623.21, 18,934.86 and 3,858.10

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Solution

The fourth proportional to 12,623.21, 18,934.86 and 3,858.10 is: 5,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.21 : 18,934.86 = 3,858.10 : x
  2. Step 2: Convert to fraction form
    12,623.21/18,934.86 = 3,858.10/x
  3. Step 3: Cross multiply
    12,623.21x = 18,934.86 × 3,858.10
  4. Step 4: Simplify right side
    12,623.21x = 73,052,550.50
  5. Step 5: Solve for x
    x = 73,052,550.50/12,623.21
  6. Step 6: Final answer
    x = 5,787.16

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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.