Home / 18,808.06-28,209.21-4,958.14

Finding the Fourth Proportional to 18,808.06, 28,209.21 and 4,958.14

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Solution

The fourth proportional to 18,808.06, 28,209.21 and 4,958.14 is: 7,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808.06 : 28,209.21 = 4,958.14 : x
  2. Step 2: Convert to fraction form
    18,808.06/28,209.21 = 4,958.14/x
  3. Step 3: Cross multiply
    18,808.06x = 28,209.21 × 4,958.14
  4. Step 4: Simplify right side
    18,808.06x = 139,865,212.47
  5. Step 5: Solve for x
    x = 139,865,212.47/18,808.06
  6. Step 6: Final answer
    x = 7,436.45

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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.