Home / 15,636.93-21,578.97-8,466.90

Finding the Fourth Proportional to 15,636.93, 21,578.97 and 8,466.90

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Solution

The fourth proportional to 15,636.93, 21,578.97 and 8,466.90 is: 11,684.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.93 : 21,578.97 = 8,466.90 : x
  2. Step 2: Convert to fraction form
    15,636.93/21,578.97 = 8,466.90/x
  3. Step 3: Cross multiply
    15,636.93x = 21,578.97 × 8,466.90
  4. Step 4: Simplify right side
    15,636.93x = 182,706,981.09
  5. Step 5: Solve for x
    x = 182,706,981.09/15,636.93
  6. Step 6: Final answer
    x = 11,684.33

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1.5x scale

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.