Home / 12,179.53-18,274.34-4,389.13

Finding the Fourth Proportional to 12,179.53, 18,274.34 and 4,389.13

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Solution

The fourth proportional to 12,179.53, 18,274.34 and 4,389.13 is: 6,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.53 : 18,274.34 = 4,389.13 : x
  2. Step 2: Convert to fraction form
    12,179.53/18,274.34 = 4,389.13/x
  3. Step 3: Cross multiply
    12,179.53x = 18,274.34 × 4,389.13
  4. Step 4: Simplify right side
    12,179.53x = 80,208,453.92
  5. Step 5: Solve for x
    x = 80,208,453.92/12,179.53
  6. Step 6: Final answer
    x = 6,585.51

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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.