Home / 8,772.90-13,159.31-5,072.73

Finding the Fourth Proportional to 8,772.90, 13,159.31 and 5,072.73

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Solution

The fourth proportional to 8,772.90, 13,159.31 and 5,072.73 is: 7,609.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.90 : 13,159.31 = 5,072.73 : x
  2. Step 2: Convert to fraction form
    8,772.90/13,159.31 = 5,072.73/x
  3. Step 3: Cross multiply
    8,772.90x = 13,159.31 × 5,072.73
  4. Step 4: Simplify right side
    8,772.90x = 66,753,601.25
  5. Step 5: Solve for x
    x = 66,753,601.25/8,772.90
  6. Step 6: Final answer
    x = 7,609.07

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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.