Home / 8,815.80-13,218.36-3,472.58

Finding the Fourth Proportional to 8,815.80, 13,218.36 and 3,472.58

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Solution

The fourth proportional to 8,815.80, 13,218.36 and 3,472.58 is: 5,206.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.80 : 13,218.36 = 3,472.58 : x
  2. Step 2: Convert to fraction form
    8,815.80/13,218.36 = 3,472.58/x
  3. Step 3: Cross multiply
    8,815.80x = 13,218.36 × 3,472.58
  4. Step 4: Simplify right side
    8,815.80x = 45,901,746.48
  5. Step 5: Solve for x
    x = 45,901,746.48/8,815.80
  6. Step 6: Final answer
    x = 5,206.76

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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.