Home / 14,140.86-21,211.28-3,610.89

Finding the Fourth Proportional to 14,140.86, 21,211.28 and 3,610.89

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Solution

The fourth proportional to 14,140.86, 21,211.28 and 3,610.89 is: 5,416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.86 : 21,211.28 = 3,610.89 : x
  2. Step 2: Convert to fraction form
    14,140.86/21,211.28 = 3,610.89/x
  3. Step 3: Cross multiply
    14,140.86x = 21,211.28 × 3,610.89
  4. Step 4: Simplify right side
    14,140.86x = 76,591,474.73
  5. Step 5: Solve for x
    x = 76,591,474.73/14,140.86
  6. Step 6: Final answer
    x = 5,416.32

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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.