Home / 12,178.28-18,267.36-2,944.28

Finding the Fourth Proportional to 12,178.28, 18,267.36 and 2,944.28

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Solution

The fourth proportional to 12,178.28, 18,267.36 and 2,944.28 is: 4,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.28 : 18,267.36 = 2,944.28 : x
  2. Step 2: Convert to fraction form
    12,178.28/18,267.36 = 2,944.28/x
  3. Step 3: Cross multiply
    12,178.28x = 18,267.36 × 2,944.28
  4. Step 4: Simplify right side
    12,178.28x = 53,784,222.70
  5. Step 5: Solve for x
    x = 53,784,222.70/12,178.28
  6. Step 6: Final answer
    x = 4,416.41

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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.