Home / 19,956.12-27,537.75-11,458.05

Finding the Fourth Proportional to 19,956.12, 27,537.75 and 11,458.05

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Solution

The fourth proportional to 19,956.12, 27,537.75 and 11,458.05 is: 15,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.12 : 27,537.75 = 11,458.05 : x
  2. Step 2: Convert to fraction form
    19,956.12/27,537.75 = 11,458.05/x
  3. Step 3: Cross multiply
    19,956.12x = 27,537.75 × 11,458.05
  4. Step 4: Simplify right side
    19,956.12x = 315,528,916.39
  5. Step 5: Solve for x
    x = 315,528,916.39/19,956.12
  6. Step 6: Final answer
    x = 15,811.14

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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.