Home / 8,815.64-13,223.77-2,972.30

Finding the Fourth Proportional to 8,815.64, 13,223.77 and 2,972.30

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Solution

The fourth proportional to 8,815.64, 13,223.77 and 2,972.30 is: 4,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.64 : 13,223.77 = 2,972.30 : x
  2. Step 2: Convert to fraction form
    8,815.64/13,223.77 = 2,972.30/x
  3. Step 3: Cross multiply
    8,815.64x = 13,223.77 × 2,972.30
  4. Step 4: Simplify right side
    8,815.64x = 39,304,945.45
  5. Step 5: Solve for x
    x = 39,304,945.45/8,815.64
  6. Step 6: Final answer
    x = 4,458.55

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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.