Home / 13,539.98-20,292.66-11,777.63

Finding the Fourth Proportional to 13,539.98, 20,292.66 and 11,777.63

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Solution

The fourth proportional to 13,539.98, 20,292.66 and 11,777.63 is: 17,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.98 : 20,292.66 = 11,777.63 : x
  2. Step 2: Convert to fraction form
    13,539.98/20,292.66 = 11,777.63/x
  3. Step 3: Cross multiply
    13,539.98x = 20,292.66 × 11,777.63
  4. Step 4: Simplify right side
    13,539.98x = 238,999,339.73
  5. Step 5: Solve for x
    x = 238,999,339.73/13,539.98
  6. Step 6: Final answer
    x = 17,651.38

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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.