Home / 13,184.46-19,682.67-12,723.12

Finding the Fourth Proportional to 13,184.46, 19,682.67 and 12,723.12

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Solution

The fourth proportional to 13,184.46, 19,682.67 and 12,723.12 is: 18,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.46 : 19,682.67 = 12,723.12 : x
  2. Step 2: Convert to fraction form
    13,184.46/19,682.67 = 12,723.12/x
  3. Step 3: Cross multiply
    13,184.46x = 19,682.67 × 12,723.12
  4. Step 4: Simplify right side
    13,184.46x = 250,424,972.33
  5. Step 5: Solve for x
    x = 250,424,972.33/13,184.46
  6. Step 6: Final answer
    x = 18,993.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.