Home / 14,190.80-21,309.92-8,866.37

Finding the Fourth Proportional to 14,190.80, 21,309.92 and 8,866.37

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Solution

The fourth proportional to 14,190.80, 21,309.92 and 8,866.37 is: 13,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.80 : 21,309.92 = 8,866.37 : x
  2. Step 2: Convert to fraction form
    14,190.80/21,309.92 = 8,866.37/x
  3. Step 3: Cross multiply
    14,190.80x = 21,309.92 × 8,866.37
  4. Step 4: Simplify right side
    14,190.80x = 188,941,635.39
  5. Step 5: Solve for x
    x = 188,941,635.39/14,190.80
  6. Step 6: Final answer
    x = 13,314.38

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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.