Home / 10,885.80-16,335.97-3,960.30

Finding the Fourth Proportional to 10,885.80, 16,335.97 and 3,960.30

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Solution

The fourth proportional to 10,885.80, 16,335.97 and 3,960.30 is: 5,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.80 : 16,335.97 = 3,960.30 : x
  2. Step 2: Convert to fraction form
    10,885.80/16,335.97 = 3,960.30/x
  3. Step 3: Cross multiply
    10,885.80x = 16,335.97 × 3,960.30
  4. Step 4: Simplify right side
    10,885.80x = 64,695,351.89
  5. Step 5: Solve for x
    x = 64,695,351.89/10,885.80
  6. Step 6: Final answer
    x = 5,943.10

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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.