Home / 15,786.45-23,680.95-5,256.09

Finding the Fourth Proportional to 15,786.45, 23,680.95 and 5,256.09

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Solution

The fourth proportional to 15,786.45, 23,680.95 and 5,256.09 is: 7,884.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786.45 : 23,680.95 = 5,256.09 : x
  2. Step 2: Convert to fraction form
    15,786.45/23,680.95 = 5,256.09/x
  3. Step 3: Cross multiply
    15,786.45x = 23,680.95 × 5,256.09
  4. Step 4: Simplify right side
    15,786.45x = 124,469,204.49
  5. Step 5: Solve for x
    x = 124,469,204.49/15,786.45
  6. Step 6: Final answer
    x = 7,884.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.