Home / 14,143.80-21,197.92-12,384.62

Finding the Fourth Proportional to 14,143.80, 21,197.92 and 12,384.62

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Solution

The fourth proportional to 14,143.80, 21,197.92 and 12,384.62 is: 18,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.80 : 21,197.92 = 12,384.62 : x
  2. Step 2: Convert to fraction form
    14,143.80/21,197.92 = 12,384.62/x
  3. Step 3: Cross multiply
    14,143.80x = 21,197.92 × 12,384.62
  4. Step 4: Simplify right side
    14,143.80x = 262,528,183.99
  5. Step 5: Solve for x
    x = 262,528,183.99/14,143.80
  6. Step 6: Final answer
    x = 18,561.36

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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.