Home / 12,426.66-18,639.32-3,661.65

Finding the Fourth Proportional to 12,426.66, 18,639.32 and 3,661.65

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Solution

The fourth proportional to 12,426.66, 18,639.32 and 3,661.65 is: 5,492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.66 : 18,639.32 = 3,661.65 : x
  2. Step 2: Convert to fraction form
    12,426.66/18,639.32 = 3,661.65/x
  3. Step 3: Cross multiply
    12,426.66x = 18,639.32 × 3,661.65
  4. Step 4: Simplify right side
    12,426.66x = 68,250,647.77
  5. Step 5: Solve for x
    x = 68,250,647.77/12,426.66
  6. Step 6: Final answer
    x = 5,492.28

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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.