Home / 12,551.34-18,813.87-4,228.48

Finding the Fourth Proportional to 12,551.34, 18,813.87 and 4,228.48

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Solution

The fourth proportional to 12,551.34, 18,813.87 and 4,228.48 is: 6,338.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.34 : 18,813.87 = 4,228.48 : x
  2. Step 2: Convert to fraction form
    12,551.34/18,813.87 = 4,228.48/x
  3. Step 3: Cross multiply
    12,551.34x = 18,813.87 × 4,228.48
  4. Step 4: Simplify right side
    12,551.34x = 79,554,025.98
  5. Step 5: Solve for x
    x = 79,554,025.98/12,551.34
  6. Step 6: Final answer
    x = 6,338.29

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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.