Home / 11,821.60-16,314-6,516.34

Finding the Fourth Proportional to 11,821.60, 16,314 and 6,516.34

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Solution

The fourth proportional to 11,821.60, 16,314 and 6,516.34 is: 8,992.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.60 : 16,314 = 6,516.34 : x
  2. Step 2: Convert to fraction form
    11,821.60/16,314 = 6,516.34/x
  3. Step 3: Cross multiply
    11,821.60x = 16,314 × 6,516.34
  4. Step 4: Simplify right side
    11,821.60x = 106,307,570.76
  5. Step 5: Solve for x
    x = 106,307,570.76/11,821.60
  6. Step 6: Final answer
    x = 8,992.66

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1.5x scale

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.