Home / 18,969.18-28,450.62-5,818.02

Finding the Fourth Proportional to 18,969.18, 28,450.62 and 5,818.02

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Solution

The fourth proportional to 18,969.18, 28,450.62 and 5,818.02 is: 8,726.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.18 : 28,450.62 = 5,818.02 : x
  2. Step 2: Convert to fraction form
    18,969.18/28,450.62 = 5,818.02/x
  3. Step 3: Cross multiply
    18,969.18x = 28,450.62 × 5,818.02
  4. Step 4: Simplify right side
    18,969.18x = 165,526,276.17
  5. Step 5: Solve for x
    x = 165,526,276.17/18,969.18
  6. Step 6: Final answer
    x = 8,726.06

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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.