Home / 15,846.45-21,867.43-8,676.23

Finding the Fourth Proportional to 15,846.45, 21,867.43 and 8,676.23

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Solution

The fourth proportional to 15,846.45, 21,867.43 and 8,676.23 is: 11,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,846.45 : 21,867.43 = 8,676.23 : x
  2. Step 2: Convert to fraction form
    15,846.45/21,867.43 = 8,676.23/x
  3. Step 3: Cross multiply
    15,846.45x = 21,867.43 × 8,676.23
  4. Step 4: Simplify right side
    15,846.45x = 189,726,919.13
  5. Step 5: Solve for x
    x = 189,726,919.13/15,846.45
  6. Step 6: Final answer
    x = 11,972.83

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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.