Home / 13,511.12-20,265.92-3,649.66

Finding the Fourth Proportional to 13,511.12, 20,265.92 and 3,649.66

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Solution

The fourth proportional to 13,511.12, 20,265.92 and 3,649.66 is: 5,474.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.12 : 20,265.92 = 3,649.66 : x
  2. Step 2: Convert to fraction form
    13,511.12/20,265.92 = 3,649.66/x
  3. Step 3: Cross multiply
    13,511.12x = 20,265.92 × 3,649.66
  4. Step 4: Simplify right side
    13,511.12x = 73,963,598.01
  5. Step 5: Solve for x
    x = 73,963,598.01/13,511.12
  6. Step 6: Final answer
    x = 5,474.28

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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.