Home / 14,109.21-21,122.27-10,427.85

Finding the Fourth Proportional to 14,109.21, 21,122.27 and 10,427.85

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Solution

The fourth proportional to 14,109.21, 21,122.27 and 10,427.85 is: 15,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.21 : 21,122.27 = 10,427.85 : x
  2. Step 2: Convert to fraction form
    14,109.21/21,122.27 = 10,427.85/x
  3. Step 3: Cross multiply
    14,109.21x = 21,122.27 × 10,427.85
  4. Step 4: Simplify right side
    14,109.21x = 220,259,863.22
  5. Step 5: Solve for x
    x = 220,259,863.22/14,109.21
  6. Step 6: Final answer
    x = 15,611.07

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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.