Home / 19,964.64-27,551.38-11,012.45

Finding the Fourth Proportional to 19,964.64, 27,551.38 and 11,012.45

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Solution

The fourth proportional to 19,964.64, 27,551.38 and 11,012.45 is: 15,197.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.64 : 27,551.38 = 11,012.45 : x
  2. Step 2: Convert to fraction form
    19,964.64/27,551.38 = 11,012.45/x
  3. Step 3: Cross multiply
    19,964.64x = 27,551.38 × 11,012.45
  4. Step 4: Simplify right side
    19,964.64x = 303,408,194.68
  5. Step 5: Solve for x
    x = 303,408,194.68/19,964.64
  6. Step 6: Final answer
    x = 15,197.28

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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.