Home / 14,109.85-21,163.29-5,790.75

Finding the Fourth Proportional to 14,109.85, 21,163.29 and 5,790.75

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Solution

The fourth proportional to 14,109.85, 21,163.29 and 5,790.75 is: 8,685.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.85 : 21,163.29 = 5,790.75 : x
  2. Step 2: Convert to fraction form
    14,109.85/21,163.29 = 5,790.75/x
  3. Step 3: Cross multiply
    14,109.85x = 21,163.29 × 5,790.75
  4. Step 4: Simplify right side
    14,109.85x = 122,551,215.75
  5. Step 5: Solve for x
    x = 122,551,215.75/14,109.85
  6. Step 6: Final answer
    x = 8,685.51

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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.