Home / 8,310.36-12,467.40-3,116.28

Finding the Fourth Proportional to 8,310.36, 12,467.40 and 3,116.28

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Solution

The fourth proportional to 8,310.36, 12,467.40 and 3,116.28 is: 4,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.36 : 12,467.40 = 3,116.28 : x
  2. Step 2: Convert to fraction form
    8,310.36/12,467.40 = 3,116.28/x
  3. Step 3: Cross multiply
    8,310.36x = 12,467.40 × 3,116.28
  4. Step 4: Simplify right side
    8,310.36x = 38,851,909.27
  5. Step 5: Solve for x
    x = 38,851,909.27/8,310.36
  6. Step 6: Final answer
    x = 4,675.12

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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.