Home / 7,815.60-11,721.56-2,267.48

Finding the Fourth Proportional to 7,815.60, 11,721.56 and 2,267.48

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Solution

The fourth proportional to 7,815.60, 11,721.56 and 2,267.48 is: 3,400.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.60 : 11,721.56 = 2,267.48 : x
  2. Step 2: Convert to fraction form
    7,815.60/11,721.56 = 2,267.48/x
  3. Step 3: Cross multiply
    7,815.60x = 11,721.56 × 2,267.48
  4. Step 4: Simplify right side
    7,815.60x = 26,578,402.87
  5. Step 5: Solve for x
    x = 26,578,402.87/7,815.60
  6. Step 6: Final answer
    x = 3,400.69

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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.