Home / 13,986.77-20,972.92-4,124.79

Finding the Fourth Proportional to 13,986.77, 20,972.92 and 4,124.79

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Solution

The fourth proportional to 13,986.77, 20,972.92 and 4,124.79 is: 6,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.77 : 20,972.92 = 4,124.79 : x
  2. Step 2: Convert to fraction form
    13,986.77/20,972.92 = 4,124.79/x
  3. Step 3: Cross multiply
    13,986.77x = 20,972.92 × 4,124.79
  4. Step 4: Simplify right side
    13,986.77x = 86,508,890.69
  5. Step 5: Solve for x
    x = 86,508,890.69/13,986.77
  6. Step 6: Final answer
    x = 6,185.05

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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.