Home / 15,308.46-21,125.34-8,502.03

Finding the Fourth Proportional to 15,308.46, 21,125.34 and 8,502.03

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Solution

The fourth proportional to 15,308.46, 21,125.34 and 8,502.03 is: 11,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.46 : 21,125.34 = 8,502.03 : x
  2. Step 2: Convert to fraction form
    15,308.46/21,125.34 = 8,502.03/x
  3. Step 3: Cross multiply
    15,308.46x = 21,125.34 × 8,502.03
  4. Step 4: Simplify right side
    15,308.46x = 179,608,274.44
  5. Step 5: Solve for x
    x = 179,608,274.44/15,308.46
  6. Step 6: Final answer
    x = 11,732.62

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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.