Home / 13,511.37-20,266.29-3,649.91

Finding the Fourth Proportional to 13,511.37, 20,266.29 and 3,649.91

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Solution

The fourth proportional to 13,511.37, 20,266.29 and 3,649.91 is: 5,474.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.37 : 20,266.29 = 3,649.91 : x
  2. Step 2: Convert to fraction form
    13,511.37/20,266.29 = 3,649.91/x
  3. Step 3: Cross multiply
    13,511.37x = 20,266.29 × 3,649.91
  4. Step 4: Simplify right side
    13,511.37x = 73,970,134.53
  5. Step 5: Solve for x
    x = 73,970,134.53/13,511.37
  6. Step 6: Final answer
    x = 5,474.66

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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.