Home / 11,516.32-15,896.63-6,800.62

Finding the Fourth Proportional to 11,516.32, 15,896.63 and 6,800.62

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Solution

The fourth proportional to 11,516.32, 15,896.63 and 6,800.62 is: 9,387.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,516.32 : 15,896.63 = 6,800.62 : x
  2. Step 2: Convert to fraction form
    11,516.32/15,896.63 = 6,800.62/x
  3. Step 3: Cross multiply
    11,516.32x = 15,896.63 × 6,800.62
  4. Step 4: Simplify right side
    11,516.32x = 108,106,905.91
  5. Step 5: Solve for x
    x = 108,106,905.91/11,516.32
  6. Step 6: Final answer
    x = 9,387.28

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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.