Home / 19,128.43-26,397.03-11,171.89

Finding the Fourth Proportional to 19,128.43, 26,397.03 and 11,171.89

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Solution

The fourth proportional to 19,128.43, 26,397.03 and 11,171.89 is: 15,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.43 : 26,397.03 = 11,171.89 : x
  2. Step 2: Convert to fraction form
    19,128.43/26,397.03 = 11,171.89/x
  3. Step 3: Cross multiply
    19,128.43x = 26,397.03 × 11,171.89
  4. Step 4: Simplify right side
    19,128.43x = 294,904,715.49
  5. Step 5: Solve for x
    x = 294,904,715.49/19,128.43
  6. Step 6: Final answer
    x = 15,417.09

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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.