Home / 8,813.24-13,219.91-2,969.90

Finding the Fourth Proportional to 8,813.24, 13,219.91 and 2,969.90

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Solution

The fourth proportional to 8,813.24, 13,219.91 and 2,969.90 is: 4,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.24 : 13,219.91 = 2,969.90 : x
  2. Step 2: Convert to fraction form
    8,813.24/13,219.91 = 2,969.90/x
  3. Step 3: Cross multiply
    8,813.24x = 13,219.91 × 2,969.90
  4. Step 4: Simplify right side
    8,813.24x = 39,261,810.71
  5. Step 5: Solve for x
    x = 39,261,810.71/8,813.24
  6. Step 6: Final answer
    x = 4,454.87

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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.