Home / 8,786.90-13,178.30-2,545.25

Finding the Fourth Proportional to 8,786.90, 13,178.30 and 2,545.25

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Solution

The fourth proportional to 8,786.90, 13,178.30 and 2,545.25 is: 3,817.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.90 : 13,178.30 = 2,545.25 : x
  2. Step 2: Convert to fraction form
    8,786.90/13,178.30 = 2,545.25/x
  3. Step 3: Cross multiply
    8,786.90x = 13,178.30 × 2,545.25
  4. Step 4: Simplify right side
    8,786.90x = 33,541,989.46
  5. Step 5: Solve for x
    x = 33,541,989.46/8,786.90
  6. Step 6: Final answer
    x = 3,817.27

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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.