Home / 13,953.89-20,930.76-3,565.64

Finding the Fourth Proportional to 13,953.89, 20,930.76 and 3,565.64

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Solution

The fourth proportional to 13,953.89, 20,930.76 and 3,565.64 is: 5,348.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.89 : 20,930.76 = 3,565.64 : x
  2. Step 2: Convert to fraction form
    13,953.89/20,930.76 = 3,565.64/x
  3. Step 3: Cross multiply
    13,953.89x = 20,930.76 × 3,565.64
  4. Step 4: Simplify right side
    13,953.89x = 74,631,450.43
  5. Step 5: Solve for x
    x = 74,631,450.43/13,953.89
  6. Step 6: Final answer
    x = 5,348.44

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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.