Home / 17,865.28-26,789.40-8,004.64

Finding the Fourth Proportional to 17,865.28, 26,789.40 and 8,004.64

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Solution

The fourth proportional to 17,865.28, 26,789.40 and 8,004.64 is: 12,003.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865.28 : 26,789.40 = 8,004.64 : x
  2. Step 2: Convert to fraction form
    17,865.28/26,789.40 = 8,004.64/x
  3. Step 3: Cross multiply
    17,865.28x = 26,789.40 × 8,004.64
  4. Step 4: Simplify right side
    17,865.28x = 214,439,502.82
  5. Step 5: Solve for x
    x = 214,439,502.82/17,865.28
  6. Step 6: Final answer
    x = 12,003.14

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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.