Home / 18,815.06-28,219.71-4,965.14

Finding the Fourth Proportional to 18,815.06, 28,219.71 and 4,965.14

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Solution

The fourth proportional to 18,815.06, 28,219.71 and 4,965.14 is: 7,446.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.06 : 28,219.71 = 4,965.14 : x
  2. Step 2: Convert to fraction form
    18,815.06/28,219.71 = 4,965.14/x
  3. Step 3: Cross multiply
    18,815.06x = 28,219.71 × 4,965.14
  4. Step 4: Simplify right side
    18,815.06x = 140,114,810.91
  5. Step 5: Solve for x
    x = 140,114,810.91/18,815.06
  6. Step 6: Final answer
    x = 7,446.95

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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.