Home / 15,451.97-21,324.14-8,738.60

Finding the Fourth Proportional to 15,451.97, 21,324.14 and 8,738.60

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Solution

The fourth proportional to 15,451.97, 21,324.14 and 8,738.60 is: 12,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.97 : 21,324.14 = 8,738.60 : x
  2. Step 2: Convert to fraction form
    15,451.97/21,324.14 = 8,738.60/x
  3. Step 3: Cross multiply
    15,451.97x = 21,324.14 × 8,738.60
  4. Step 4: Simplify right side
    15,451.97x = 186,343,152.20
  5. Step 5: Solve for x
    x = 186,343,152.20/15,451.97
  6. Step 6: Final answer
    x = 12,059.51

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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.