Home / 8,777.40-13,171.34-3,154.60

Finding the Fourth Proportional to 8,777.40, 13,171.34 and 3,154.60

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Solution

The fourth proportional to 8,777.40, 13,171.34 and 3,154.60 is: 4,733.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.40 : 13,171.34 = 3,154.60 : x
  2. Step 2: Convert to fraction form
    8,777.40/13,171.34 = 3,154.60/x
  3. Step 3: Cross multiply
    8,777.40x = 13,171.34 × 3,154.60
  4. Step 4: Simplify right side
    8,777.40x = 41,550,309.16
  5. Step 5: Solve for x
    x = 41,550,309.16/8,777.40
  6. Step 6: Final answer
    x = 4,733.78

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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.