Home / 13,789.55-20,678.20-3,926.59

Finding the Fourth Proportional to 13,789.55, 20,678.20 and 3,926.59

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Solution

The fourth proportional to 13,789.55, 20,678.20 and 3,926.59 is: 5,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.55 : 20,678.20 = 3,926.59 : x
  2. Step 2: Convert to fraction form
    13,789.55/20,678.20 = 3,926.59/x
  3. Step 3: Cross multiply
    13,789.55x = 20,678.20 × 3,926.59
  4. Step 4: Simplify right side
    13,789.55x = 81,194,813.34
  5. Step 5: Solve for x
    x = 81,194,813.34/13,789.55
  6. Step 6: Final answer
    x = 5,888.14

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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.