Home / 13,922.63-20,883.68-3,392.69

Finding the Fourth Proportional to 13,922.63, 20,883.68 and 3,392.69

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Solution

The fourth proportional to 13,922.63, 20,883.68 and 3,392.69 is: 5,088.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.63 : 20,883.68 = 3,392.69 : x
  2. Step 2: Convert to fraction form
    13,922.63/20,883.68 = 3,392.69/x
  3. Step 3: Cross multiply
    13,922.63x = 20,883.68 × 3,392.69
  4. Step 4: Simplify right side
    13,922.63x = 70,851,835.34
  5. Step 5: Solve for x
    x = 70,851,835.34/13,922.63
  6. Step 6: Final answer
    x = 5,088.97

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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.