Home / 14,643.80-20,211.77-11,450.78

Finding the Fourth Proportional to 14,643.80, 20,211.77 and 11,450.78

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Solution

The fourth proportional to 14,643.80, 20,211.77 and 11,450.78 is: 15,804.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643.80 : 20,211.77 = 11,450.78 : x
  2. Step 2: Convert to fraction form
    14,643.80/20,211.77 = 11,450.78/x
  3. Step 3: Cross multiply
    14,643.80x = 20,211.77 × 11,450.78
  4. Step 4: Simplify right side
    14,643.80x = 231,440,531.68
  5. Step 5: Solve for x
    x = 231,440,531.68/14,643.80
  6. Step 6: Final answer
    x = 15,804.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.