Home / 26,508.11-39,768.71-13,187.43

Finding the Fourth Proportional to 26,508.11, 39,768.71 and 13,187.43

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Solution

The fourth proportional to 26,508.11, 39,768.71 and 13,187.43 is: 19,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,508.11 : 39,768.71 = 13,187.43 : x
  2. Step 2: Convert to fraction form
    26,508.11/39,768.71 = 13,187.43/x
  3. Step 3: Cross multiply
    26,508.11x = 39,768.71 × 13,187.43
  4. Step 4: Simplify right side
    26,508.11x = 524,447,013.38
  5. Step 5: Solve for x
    x = 524,447,013.38/26,508.11
  6. Step 6: Final answer
    x = 19,784.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.