Home / 13,926.74-20,890.68-3,538.76

Finding the Fourth Proportional to 13,926.74, 20,890.68 and 3,538.76

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Solution

The fourth proportional to 13,926.74, 20,890.68 and 3,538.76 is: 5,308.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.74 : 20,890.68 = 3,538.76 : x
  2. Step 2: Convert to fraction form
    13,926.74/20,890.68 = 3,538.76/x
  3. Step 3: Cross multiply
    13,926.74x = 20,890.68 × 3,538.76
  4. Step 4: Simplify right side
    13,926.74x = 73,927,102.76
  5. Step 5: Solve for x
    x = 73,927,102.76/13,926.74
  6. Step 6: Final answer
    x = 5,308.28

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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.