Home / 10,885.62-16,328.79-3,489.11

Finding the Fourth Proportional to 10,885.62, 16,328.79 and 3,489.11

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Solution

The fourth proportional to 10,885.62, 16,328.79 and 3,489.11 is: 5,233.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.62 : 16,328.79 = 3,489.11 : x
  2. Step 2: Convert to fraction form
    10,885.62/16,328.79 = 3,489.11/x
  3. Step 3: Cross multiply
    10,885.62x = 16,328.79 × 3,489.11
  4. Step 4: Simplify right side
    10,885.62x = 56,972,862.83
  5. Step 5: Solve for x
    x = 56,972,862.83/10,885.62
  6. Step 6: Final answer
    x = 5,233.77

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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.