Home / 18,331.31-27,500.40-8,336.79

Finding the Fourth Proportional to 18,331.31, 27,500.40 and 8,336.79

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Solution

The fourth proportional to 18,331.31, 27,500.40 and 8,336.79 is: 12,506.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.31 : 27,500.40 = 8,336.79 : x
  2. Step 2: Convert to fraction form
    18,331.31/27,500.40 = 8,336.79/x
  3. Step 3: Cross multiply
    18,331.31x = 27,500.40 × 8,336.79
  4. Step 4: Simplify right side
    18,331.31x = 229,265,059.72
  5. Step 5: Solve for x
    x = 229,265,059.72/18,331.31
  6. Step 6: Final answer
    x = 12,506.75

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1.5x scale

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.