Home / 8,270.32-12,391.03-6,892.51

Finding the Fourth Proportional to 8,270.32, 12,391.03 and 6,892.51

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Solution

The fourth proportional to 8,270.32, 12,391.03 and 6,892.51 is: 10,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.32 : 12,391.03 = 6,892.51 : x
  2. Step 2: Convert to fraction form
    8,270.32/12,391.03 = 6,892.51/x
  3. Step 3: Cross multiply
    8,270.32x = 12,391.03 × 6,892.51
  4. Step 4: Simplify right side
    8,270.32x = 85,405,298.19
  5. Step 5: Solve for x
    x = 85,405,298.19/8,270.32
  6. Step 6: Final answer
    x = 10,326.72

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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.