Home / 14,163.90-21,236.73-12,190.13

Finding the Fourth Proportional to 14,163.90, 21,236.73 and 12,190.13

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Solution

The fourth proportional to 14,163.90, 21,236.73 and 12,190.13 is: 18,277.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,163.90 : 21,236.73 = 12,190.13 : x
  2. Step 2: Convert to fraction form
    14,163.90/21,236.73 = 12,190.13/x
  3. Step 3: Cross multiply
    14,163.90x = 21,236.73 × 12,190.13
  4. Step 4: Simplify right side
    14,163.90x = 258,878,499.47
  5. Step 5: Solve for x
    x = 258,878,499.47/14,163.90
  6. Step 6: Final answer
    x = 18,277.35

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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.