Home / 12,180.94-18,268.17-4,785.46

Finding the Fourth Proportional to 12,180.94, 18,268.17 and 4,785.46

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Solution

The fourth proportional to 12,180.94, 18,268.17 and 4,785.46 is: 7,176.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.94 : 18,268.17 = 4,785.46 : x
  2. Step 2: Convert to fraction form
    12,180.94/18,268.17 = 4,785.46/x
  3. Step 3: Cross multiply
    12,180.94x = 18,268.17 × 4,785.46
  4. Step 4: Simplify right side
    12,180.94x = 87,421,551.14
  5. Step 5: Solve for x
    x = 87,421,551.14/12,180.94
  6. Step 6: Final answer
    x = 7,176.91

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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.