Home / 11,001.20-16,501.80-3,605.90

Finding the Fourth Proportional to 11,001.20, 16,501.80 and 3,605.90

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Solution

The fourth proportional to 11,001.20, 16,501.80 and 3,605.90 is: 5,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.20 : 16,501.80 = 3,605.90 : x
  2. Step 2: Convert to fraction form
    11,001.20/16,501.80 = 3,605.90/x
  3. Step 3: Cross multiply
    11,001.20x = 16,501.80 × 3,605.90
  4. Step 4: Simplify right side
    11,001.20x = 59,503,840.62
  5. Step 5: Solve for x
    x = 59,503,840.62/11,001.20
  6. Step 6: Final answer
    x = 5,408.85

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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.