Home / 8,781.45-13,178.30-3,852.50

Finding the Fourth Proportional to 8,781.45, 13,178.30 and 3,852.50

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Solution

The fourth proportional to 8,781.45, 13,178.30 and 3,852.50 is: 5,781.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.45 : 13,178.30 = 3,852.50 : x
  2. Step 2: Convert to fraction form
    8,781.45/13,178.30 = 3,852.50/x
  3. Step 3: Cross multiply
    8,781.45x = 13,178.30 × 3,852.50
  4. Step 4: Simplify right side
    8,781.45x = 50,769,315.60
  5. Step 5: Solve for x
    x = 50,769,315.60/8,781.45
  6. Step 6: Final answer
    x = 5,781.43

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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.