Home / 13,742.82-20,601.42-4,975.68

Finding the Fourth Proportional to 13,742.82, 20,601.42 and 4,975.68

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Solution

The fourth proportional to 13,742.82, 20,601.42 and 4,975.68 is: 7,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.82 : 20,601.42 = 4,975.68 : x
  2. Step 2: Convert to fraction form
    13,742.82/20,601.42 = 4,975.68/x
  3. Step 3: Cross multiply
    13,742.82x = 20,601.42 × 4,975.68
  4. Step 4: Simplify right side
    13,742.82x = 102,506,073.47
  5. Step 5: Solve for x
    x = 102,506,073.47/13,742.82
  6. Step 6: Final answer
    x = 7,458.88

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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.