Home / 12,116.64-16,721.98-6,811.94

Finding the Fourth Proportional to 12,116.64, 16,721.98 and 6,811.94

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Solution

The fourth proportional to 12,116.64, 16,721.98 and 6,811.94 is: 9,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.64 : 16,721.98 = 6,811.94 : x
  2. Step 2: Convert to fraction form
    12,116.64/16,721.98 = 6,811.94/x
  3. Step 3: Cross multiply
    12,116.64x = 16,721.98 × 6,811.94
  4. Step 4: Simplify right side
    12,116.64x = 113,909,124.44
  5. Step 5: Solve for x
    x = 113,909,124.44/12,116.64
  6. Step 6: Final answer
    x = 9,401.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.