Home / 13,504.92-18,628.98-8,123.64

Finding the Fourth Proportional to 13,504.92, 18,628.98 and 8,123.64

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Solution

The fourth proportional to 13,504.92, 18,628.98 and 8,123.64 is: 11,205.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.92 : 18,628.98 = 8,123.64 : x
  2. Step 2: Convert to fraction form
    13,504.92/18,628.98 = 8,123.64/x
  3. Step 3: Cross multiply
    13,504.92x = 18,628.98 × 8,123.64
  4. Step 4: Simplify right side
    13,504.92x = 151,335,127.09
  5. Step 5: Solve for x
    x = 151,335,127.09/13,504.92
  6. Step 6: Final answer
    x = 11,205.93

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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.