Home / 12,228.81-18,325.23-7,226.04

Finding the Fourth Proportional to 12,228.81, 18,325.23 and 7,226.04

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Solution

The fourth proportional to 12,228.81, 18,325.23 and 7,226.04 is: 10,828.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.81 : 18,325.23 = 7,226.04 : x
  2. Step 2: Convert to fraction form
    12,228.81/18,325.23 = 7,226.04/x
  3. Step 3: Cross multiply
    12,228.81x = 18,325.23 × 7,226.04
  4. Step 4: Simplify right side
    12,228.81x = 132,418,844.99
  5. Step 5: Solve for x
    x = 132,418,844.99/12,228.81
  6. Step 6: Final answer
    x = 10,828.43

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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.