Home / 13,739.88-20,609.73-4,974.78

Finding the Fourth Proportional to 13,739.88, 20,609.73 and 4,974.78

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Solution

The fourth proportional to 13,739.88, 20,609.73 and 4,974.78 is: 7,462.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.88 : 20,609.73 = 4,974.78 : x
  2. Step 2: Convert to fraction form
    13,739.88/20,609.73 = 4,974.78/x
  3. Step 3: Cross multiply
    13,739.88x = 20,609.73 × 4,974.78
  4. Step 4: Simplify right side
    13,739.88x = 102,528,872.61
  5. Step 5: Solve for x
    x = 102,528,872.61/13,739.88
  6. Step 6: Final answer
    x = 7,462.14

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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.