Home / 11,516.31-15,892.47-6,800.85

Finding the Fourth Proportional to 11,516.31, 15,892.47 and 6,800.85

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Solution

The fourth proportional to 11,516.31, 15,892.47 and 6,800.85 is: 9,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,516.31 : 15,892.47 = 6,800.85 : x
  2. Step 2: Convert to fraction form
    11,516.31/15,892.47 = 6,800.85/x
  3. Step 3: Cross multiply
    11,516.31x = 15,892.47 × 6,800.85
  4. Step 4: Simplify right side
    11,516.31x = 108,082,304.60
  5. Step 5: Solve for x
    x = 108,082,304.60/11,516.31
  6. Step 6: Final answer
    x = 9,385.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.