Home / 11,972.56-16,529.52-7,727.36

Finding the Fourth Proportional to 11,972.56, 16,529.52 and 7,727.36

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Solution

The fourth proportional to 11,972.56, 16,529.52 and 7,727.36 is: 10,668.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.56 : 16,529.52 = 7,727.36 : x
  2. Step 2: Convert to fraction form
    11,972.56/16,529.52 = 7,727.36/x
  3. Step 3: Cross multiply
    11,972.56x = 16,529.52 × 7,727.36
  4. Step 4: Simplify right side
    11,972.56x = 127,729,551.67
  5. Step 5: Solve for x
    x = 127,729,551.67/11,972.56
  6. Step 6: Final answer
    x = 10,668.52

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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.