Home / 19,964.79-27,551.55-11,012.06

Finding the Fourth Proportional to 19,964.79, 27,551.55 and 11,012.06

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Solution

The fourth proportional to 19,964.79, 27,551.55 and 11,012.06 is: 15,196.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.79 : 27,551.55 = 11,012.06 : x
  2. Step 2: Convert to fraction form
    19,964.79/27,551.55 = 11,012.06/x
  3. Step 3: Cross multiply
    19,964.79x = 27,551.55 × 11,012.06
  4. Step 4: Simplify right side
    19,964.79x = 303,399,321.69
  5. Step 5: Solve for x
    x = 303,399,321.69/19,964.79
  6. Step 6: Final answer
    x = 15,196.72

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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.