Home / 13,739.80-18,946.68-11,756.92

Finding the Fourth Proportional to 13,739.80, 18,946.68 and 11,756.92

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Solution

The fourth proportional to 13,739.80, 18,946.68 and 11,756.92 is: 16,212.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.80 : 18,946.68 = 11,756.92 : x
  2. Step 2: Convert to fraction form
    13,739.80/18,946.68 = 11,756.92/x
  3. Step 3: Cross multiply
    13,739.80x = 18,946.68 × 11,756.92
  4. Step 4: Simplify right side
    13,739.80x = 222,754,601.03
  5. Step 5: Solve for x
    x = 222,754,601.03/13,739.80
  6. Step 6: Final answer
    x = 16,212.36

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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.