Home / 8,541.45-11,769.71-6,299.78

Finding the Fourth Proportional to 8,541.45, 11,769.71 and 6,299.78

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Solution

The fourth proportional to 8,541.45, 11,769.71 and 6,299.78 is: 8,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.45 : 11,769.71 = 6,299.78 : x
  2. Step 2: Convert to fraction form
    8,541.45/11,769.71 = 6,299.78/x
  3. Step 3: Cross multiply
    8,541.45x = 11,769.71 × 6,299.78
  4. Step 4: Simplify right side
    8,541.45x = 74,146,493.32
  5. Step 5: Solve for x
    x = 74,146,493.32/8,541.45
  6. Step 6: Final answer
    x = 8,680.79

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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.