Home / 19,163.26-28,752.45-12,588.22

Finding the Fourth Proportional to 19,163.26, 28,752.45 and 12,588.22

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Solution

The fourth proportional to 19,163.26, 28,752.45 and 12,588.22 is: 18,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.26 : 28,752.45 = 12,588.22 : x
  2. Step 2: Convert to fraction form
    19,163.26/28,752.45 = 12,588.22/x
  3. Step 3: Cross multiply
    19,163.26x = 28,752.45 × 12,588.22
  4. Step 4: Simplify right side
    19,163.26x = 361,942,166.14
  5. Step 5: Solve for x
    x = 361,942,166.14/19,163.26
  6. Step 6: Final answer
    x = 18,887.30

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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.