Home / 8,507.20-12,742.24-4,115.36

Finding the Fourth Proportional to 8,507.20, 12,742.24 and 4,115.36

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Solution

The fourth proportional to 8,507.20, 12,742.24 and 4,115.36 is: 6,164.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.20 : 12,742.24 = 4,115.36 : x
  2. Step 2: Convert to fraction form
    8,507.20/12,742.24 = 4,115.36/x
  3. Step 3: Cross multiply
    8,507.20x = 12,742.24 × 4,115.36
  4. Step 4: Simplify right side
    8,507.20x = 52,438,904.81
  5. Step 5: Solve for x
    x = 52,438,904.81/8,507.20
  6. Step 6: Final answer
    x = 6,164.06

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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.