Home / 16,885.90-25,313.37-6,489.82

Finding the Fourth Proportional to 16,885.90, 25,313.37 and 6,489.82

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Solution

The fourth proportional to 16,885.90, 25,313.37 and 6,489.82 is: 9,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.90 : 25,313.37 = 6,489.82 : x
  2. Step 2: Convert to fraction form
    16,885.90/25,313.37 = 6,489.82/x
  3. Step 3: Cross multiply
    16,885.90x = 25,313.37 × 6,489.82
  4. Step 4: Simplify right side
    16,885.90x = 164,279,214.89
  5. Step 5: Solve for x
    x = 164,279,214.89/16,885.90
  6. Step 6: Final answer
    x = 9,728.78

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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.