Home / 8,602.28-12,903.41-5,679.89

Finding the Fourth Proportional to 8,602.28, 12,903.41 and 5,679.89

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Solution

The fourth proportional to 8,602.28, 12,903.41 and 5,679.89 is: 8,519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602.28 : 12,903.41 = 5,679.89 : x
  2. Step 2: Convert to fraction form
    8,602.28/12,903.41 = 5,679.89/x
  3. Step 3: Cross multiply
    8,602.28x = 12,903.41 × 5,679.89
  4. Step 4: Simplify right side
    8,602.28x = 73,289,995.88
  5. Step 5: Solve for x
    x = 73,289,995.88/8,602.28
  6. Step 6: Final answer
    x = 8,519.83

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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.