Home / 12,284.10-18,422.51-4,491.09

Finding the Fourth Proportional to 12,284.10, 18,422.51 and 4,491.09

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Solution

The fourth proportional to 12,284.10, 18,422.51 and 4,491.09 is: 6,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,284.10 : 18,422.51 = 4,491.09 : x
  2. Step 2: Convert to fraction form
    12,284.10/18,422.51 = 4,491.09/x
  3. Step 3: Cross multiply
    12,284.10x = 18,422.51 × 4,491.09
  4. Step 4: Simplify right side
    12,284.10x = 82,737,127.98
  5. Step 5: Solve for x
    x = 82,737,127.98/12,284.10
  6. Step 6: Final answer
    x = 6,735.30

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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.