Home / 8,813.40-13,229.82-4,429.68

Finding the Fourth Proportional to 8,813.40, 13,229.82 and 4,429.68

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Solution

The fourth proportional to 8,813.40, 13,229.82 and 4,429.68 is: 6,649.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.40 : 13,229.82 = 4,429.68 : x
  2. Step 2: Convert to fraction form
    8,813.40/13,229.82 = 4,429.68/x
  3. Step 3: Cross multiply
    8,813.40x = 13,229.82 × 4,429.68
  4. Step 4: Simplify right side
    8,813.40x = 58,603,869.06
  5. Step 5: Solve for x
    x = 58,603,869.06/8,813.40
  6. Step 6: Final answer
    x = 6,649.41

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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.