Home / 12,228.48-18,341.76-4,439.04

Finding the Fourth Proportional to 12,228.48, 18,341.76 and 4,439.04

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Solution

The fourth proportional to 12,228.48, 18,341.76 and 4,439.04 is: 6,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.48 : 18,341.76 = 4,439.04 : x
  2. Step 2: Convert to fraction form
    12,228.48/18,341.76 = 4,439.04/x
  3. Step 3: Cross multiply
    12,228.48x = 18,341.76 × 4,439.04
  4. Step 4: Simplify right side
    12,228.48x = 81,419,806.31
  5. Step 5: Solve for x
    x = 81,419,806.31/12,228.48
  6. Step 6: Final answer
    x = 6,658.21

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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.