Home / 15,990.82-23,989.50-5,609.86

Finding the Fourth Proportional to 15,990.82, 23,989.50 and 5,609.86

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Solution

The fourth proportional to 15,990.82, 23,989.50 and 5,609.86 is: 8,415.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.82 : 23,989.50 = 5,609.86 : x
  2. Step 2: Convert to fraction form
    15,990.82/23,989.50 = 5,609.86/x
  3. Step 3: Cross multiply
    15,990.82x = 23,989.50 × 5,609.86
  4. Step 4: Simplify right side
    15,990.82x = 134,577,736.47
  5. Step 5: Solve for x
    x = 134,577,736.47/15,990.82
  6. Step 6: Final answer
    x = 8,415.94

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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.