Home / 15,983.42-23,989.91-8,091.52

Finding the Fourth Proportional to 15,983.42, 23,989.91 and 8,091.52

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Solution

The fourth proportional to 15,983.42, 23,989.91 and 8,091.52 is: 12,144.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,983.42 : 23,989.91 = 8,091.52 : x
  2. Step 2: Convert to fraction form
    15,983.42/23,989.91 = 8,091.52/x
  3. Step 3: Cross multiply
    15,983.42x = 23,989.91 × 8,091.52
  4. Step 4: Simplify right side
    15,983.42x = 194,114,736.13
  5. Step 5: Solve for x
    x = 194,114,736.13/15,983.42
  6. Step 6: Final answer
    x = 12,144.76

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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.