Home / 18,806.05-28,210.50-6,326.11

Finding the Fourth Proportional to 18,806.05, 28,210.50 and 6,326.11

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Solution

The fourth proportional to 18,806.05, 28,210.50 and 6,326.11 is: 9,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.05 : 28,210.50 = 6,326.11 : x
  2. Step 2: Convert to fraction form
    18,806.05/28,210.50 = 6,326.11/x
  3. Step 3: Cross multiply
    18,806.05x = 28,210.50 × 6,326.11
  4. Step 4: Simplify right side
    18,806.05x = 178,462,726.16
  5. Step 5: Solve for x
    x = 178,462,726.16/18,806.05
  6. Step 6: Final answer
    x = 9,489.64

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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.