Home / 15,701.43-21,668.09-8,531.41

Finding the Fourth Proportional to 15,701.43, 21,668.09 and 8,531.41

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Solution

The fourth proportional to 15,701.43, 21,668.09 and 8,531.41 is: 11,773.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.43 : 21,668.09 = 8,531.41 : x
  2. Step 2: Convert to fraction form
    15,701.43/21,668.09 = 8,531.41/x
  3. Step 3: Cross multiply
    15,701.43x = 21,668.09 × 8,531.41
  4. Step 4: Simplify right side
    15,701.43x = 184,859,317.05
  5. Step 5: Solve for x
    x = 184,859,317.05/15,701.43
  6. Step 6: Final answer
    x = 11,773.41

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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.