Home / 12,551.49-18,814.09-4,228.63

Finding the Fourth Proportional to 12,551.49, 18,814.09 and 4,228.63

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Solution

The fourth proportional to 12,551.49, 18,814.09 and 4,228.63 is: 6,338.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.49 : 18,814.09 = 4,228.63 : x
  2. Step 2: Convert to fraction form
    12,551.49/18,814.09 = 4,228.63/x
  3. Step 3: Cross multiply
    12,551.49x = 18,814.09 × 4,228.63
  4. Step 4: Simplify right side
    12,551.49x = 79,557,758.18
  5. Step 5: Solve for x
    x = 79,557,758.18/12,551.49
  6. Step 6: Final answer
    x = 6,338.51

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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.