Home / 8,137.28-12,208.35-5,769.92

Finding the Fourth Proportional to 8,137.28, 12,208.35 and 5,769.92

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Solution

The fourth proportional to 8,137.28, 12,208.35 and 5,769.92 is: 8,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.28 : 12,208.35 = 5,769.92 : x
  2. Step 2: Convert to fraction form
    8,137.28/12,208.35 = 5,769.92/x
  3. Step 3: Cross multiply
    8,137.28x = 12,208.35 × 5,769.92
  4. Step 4: Simplify right side
    8,137.28x = 70,441,141.79
  5. Step 5: Solve for x
    x = 70,441,141.79/8,137.28
  6. Step 6: Final answer
    x = 8,656.60

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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.