Home / 7,815.47-11,718.30-3,370.73

Finding the Fourth Proportional to 7,815.47, 11,718.30 and 3,370.73

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Solution

The fourth proportional to 7,815.47, 11,718.30 and 3,370.73 is: 5,053.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.47 : 11,718.30 = 3,370.73 : x
  2. Step 2: Convert to fraction form
    7,815.47/11,718.30 = 3,370.73/x
  3. Step 3: Cross multiply
    7,815.47x = 11,718.30 × 3,370.73
  4. Step 4: Simplify right side
    7,815.47x = 39,499,225.36
  5. Step 5: Solve for x
    x = 39,499,225.36/7,815.47
  6. Step 6: Final answer
    x = 5,053.98

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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.