Home / 19,964.26-27,550.38-11,580.76

Finding the Fourth Proportional to 19,964.26, 27,550.38 and 11,580.76

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Solution

The fourth proportional to 19,964.26, 27,550.38 and 11,580.76 is: 15,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.26 : 27,550.38 = 11,580.76 : x
  2. Step 2: Convert to fraction form
    19,964.26/27,550.38 = 11,580.76/x
  3. Step 3: Cross multiply
    19,964.26x = 27,550.38 × 11,580.76
  4. Step 4: Simplify right side
    19,964.26x = 319,054,338.69
  5. Step 5: Solve for x
    x = 319,054,338.69/19,964.26
  6. Step 6: Final answer
    x = 15,981.28

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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.