Home / 7,815.54-11,720.85-2,269.26

Finding the Fourth Proportional to 7,815.54, 11,720.85 and 2,269.26

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Solution

The fourth proportional to 7,815.54, 11,720.85 and 2,269.26 is: 3,403.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.54 : 11,720.85 = 2,269.26 : x
  2. Step 2: Convert to fraction form
    7,815.54/11,720.85 = 2,269.26/x
  3. Step 3: Cross multiply
    7,815.54x = 11,720.85 × 2,269.26
  4. Step 4: Simplify right side
    7,815.54x = 26,597,656.07
  5. Step 5: Solve for x
    x = 26,597,656.07/7,815.54
  6. Step 6: Final answer
    x = 3,403.18

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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.