Home / 18,980.56-28,470.66-6,500.44

Finding the Fourth Proportional to 18,980.56, 28,470.66 and 6,500.44

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Solution

The fourth proportional to 18,980.56, 28,470.66 and 6,500.44 is: 9,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,980.56 : 28,470.66 = 6,500.44 : x
  2. Step 2: Convert to fraction form
    18,980.56/28,470.66 = 6,500.44/x
  3. Step 3: Cross multiply
    18,980.56x = 28,470.66 × 6,500.44
  4. Step 4: Simplify right side
    18,980.56x = 185,071,817.09
  5. Step 5: Solve for x
    x = 185,071,817.09/18,980.56
  6. Step 6: Final answer
    x = 9,750.60

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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.