Home / 12,226.28-18,330.42-3,901.50

Finding the Fourth Proportional to 12,226.28, 18,330.42 and 3,901.50

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Solution

The fourth proportional to 12,226.28, 18,330.42 and 3,901.50 is: 5,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.28 : 18,330.42 = 3,901.50 : x
  2. Step 2: Convert to fraction form
    12,226.28/18,330.42 = 3,901.50/x
  3. Step 3: Cross multiply
    12,226.28x = 18,330.42 × 3,901.50
  4. Step 4: Simplify right side
    12,226.28x = 71,516,133.63
  5. Step 5: Solve for x
    x = 71,516,133.63/12,226.28
  6. Step 6: Final answer
    x = 5,849.38

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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.