Home / 12,217.88-18,329.52-4,427.30

Finding the Fourth Proportional to 12,217.88, 18,329.52 and 4,427.30

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Solution

The fourth proportional to 12,217.88, 18,329.52 and 4,427.30 is: 6,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.88 : 18,329.52 = 4,427.30 : x
  2. Step 2: Convert to fraction form
    12,217.88/18,329.52 = 4,427.30/x
  3. Step 3: Cross multiply
    12,217.88x = 18,329.52 × 4,427.30
  4. Step 4: Simplify right side
    12,217.88x = 81,150,283.90
  5. Step 5: Solve for x
    x = 81,150,283.90/12,217.88
  6. Step 6: Final answer
    x = 6,641.93

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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.