Home / 13,146.44-18,123.23-8,107.27

Finding the Fourth Proportional to 13,146.44, 18,123.23 and 8,107.27

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Solution

The fourth proportional to 13,146.44, 18,123.23 and 8,107.27 is: 11,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.44 : 18,123.23 = 8,107.27 : x
  2. Step 2: Convert to fraction form
    13,146.44/18,123.23 = 8,107.27/x
  3. Step 3: Cross multiply
    13,146.44x = 18,123.23 × 8,107.27
  4. Step 4: Simplify right side
    13,146.44x = 146,929,918.88
  5. Step 5: Solve for x
    x = 146,929,918.88/13,146.44
  6. Step 6: Final answer
    x = 11,176.40

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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.