Home / 8,207.35-12,309.64-2,659.88

Finding the Fourth Proportional to 8,207.35, 12,309.64 and 2,659.88

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Solution

The fourth proportional to 8,207.35, 12,309.64 and 2,659.88 is: 3,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.35 : 12,309.64 = 2,659.88 : x
  2. Step 2: Convert to fraction form
    8,207.35/12,309.64 = 2,659.88/x
  3. Step 3: Cross multiply
    8,207.35x = 12,309.64 × 2,659.88
  4. Step 4: Simplify right side
    8,207.35x = 32,742,189.37
  5. Step 5: Solve for x
    x = 32,742,189.37/8,207.35
  6. Step 6: Final answer
    x = 3,989.38

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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.