Home / 13,677.64-20,511.42-4,910.20

Finding the Fourth Proportional to 13,677.64, 20,511.42 and 4,910.20

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Solution

The fourth proportional to 13,677.64, 20,511.42 and 4,910.20 is: 7,363.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.64 : 20,511.42 = 4,910.20 : x
  2. Step 2: Convert to fraction form
    13,677.64/20,511.42 = 4,910.20/x
  3. Step 3: Cross multiply
    13,677.64x = 20,511.42 × 4,910.20
  4. Step 4: Simplify right side
    13,677.64x = 100,715,174.48
  5. Step 5: Solve for x
    x = 100,715,174.48/13,677.64
  6. Step 6: Final answer
    x = 7,363.49

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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.