Home / 12,288.28-18,432.43-3,054.28

Finding the Fourth Proportional to 12,288.28, 18,432.43 and 3,054.28

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Solution

The fourth proportional to 12,288.28, 18,432.43 and 3,054.28 is: 4,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.28 : 18,432.43 = 3,054.28 : x
  2. Step 2: Convert to fraction form
    12,288.28/18,432.43 = 3,054.28/x
  3. Step 3: Cross multiply
    12,288.28x = 18,432.43 × 3,054.28
  4. Step 4: Simplify right side
    12,288.28x = 56,297,694.87
  5. Step 5: Solve for x
    x = 56,297,694.87/12,288.28
  6. Step 6: Final answer
    x = 4,581.42

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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.