Home / 15,274.33-21,078.71-8,559.97

Finding the Fourth Proportional to 15,274.33, 21,078.71 and 8,559.97

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Solution

The fourth proportional to 15,274.33, 21,078.71 and 8,559.97 is: 11,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,274.33 : 21,078.71 = 8,559.97 : x
  2. Step 2: Convert to fraction form
    15,274.33/21,078.71 = 8,559.97/x
  3. Step 3: Cross multiply
    15,274.33x = 21,078.71 × 8,559.97
  4. Step 4: Simplify right side
    15,274.33x = 180,433,125.24
  5. Step 5: Solve for x
    x = 180,433,125.24/15,274.33
  6. Step 6: Final answer
    x = 11,812.83

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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.