Home / 10,985.45-16,471.89-3,487.59

Finding the Fourth Proportional to 10,985.45, 16,471.89 and 3,487.59

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Solution

The fourth proportional to 10,985.45, 16,471.89 and 3,487.59 is: 5,229.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.45 : 16,471.89 = 3,487.59 : x
  2. Step 2: Convert to fraction form
    10,985.45/16,471.89 = 3,487.59/x
  3. Step 3: Cross multiply
    10,985.45x = 16,471.89 × 3,487.59
  4. Step 4: Simplify right side
    10,985.45x = 57,447,198.85
  5. Step 5: Solve for x
    x = 57,447,198.85/10,985.45
  6. Step 6: Final answer
    x = 5,229.39

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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.