Home / 19,687.59-27,167.81-11,304.09

Finding the Fourth Proportional to 19,687.59, 27,167.81 and 11,304.09

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Solution

The fourth proportional to 19,687.59, 27,167.81 and 11,304.09 is: 15,599.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.59 : 27,167.81 = 11,304.09 : x
  2. Step 2: Convert to fraction form
    19,687.59/27,167.81 = 11,304.09/x
  3. Step 3: Cross multiply
    19,687.59x = 27,167.81 × 11,304.09
  4. Step 4: Simplify right side
    19,687.59x = 307,107,312.82
  5. Step 5: Solve for x
    x = 307,107,312.82/19,687.59
  6. Step 6: Final answer
    x = 15,599.03

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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.