Home / 13,678.10-20,496.65-10,553.44

Finding the Fourth Proportional to 13,678.10, 20,496.65 and 10,553.44

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Solution

The fourth proportional to 13,678.10, 20,496.65 and 10,553.44 is: 15,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.10 : 20,496.65 = 10,553.44 : x
  2. Step 2: Convert to fraction form
    13,678.10/20,496.65 = 10,553.44/x
  3. Step 3: Cross multiply
    13,678.10x = 20,496.65 × 10,553.44
  4. Step 4: Simplify right side
    13,678.10x = 216,310,010.73
  5. Step 5: Solve for x
    x = 216,310,010.73/13,678.10
  6. Step 6: Final answer
    x = 15,814.33

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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.