Home / 11,312.61-16,965.66-3,815.34

Finding the Fourth Proportional to 11,312.61, 16,965.66 and 3,815.34

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Solution

The fourth proportional to 11,312.61, 16,965.66 and 3,815.34 is: 5,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.61 : 16,965.66 = 3,815.34 : x
  2. Step 2: Convert to fraction form
    11,312.61/16,965.66 = 3,815.34/x
  3. Step 3: Cross multiply
    11,312.61x = 16,965.66 × 3,815.34
  4. Step 4: Simplify right side
    11,312.61x = 64,729,761.22
  5. Step 5: Solve for x
    x = 64,729,761.22/11,312.61
  6. Step 6: Final answer
    x = 5,721.91

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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.