Home / 10,686.92-16,028.08-4,111.88

Finding the Fourth Proportional to 10,686.92, 16,028.08 and 4,111.88

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Solution

The fourth proportional to 10,686.92, 16,028.08 and 4,111.88 is: 6,166.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.92 : 16,028.08 = 4,111.88 : x
  2. Step 2: Convert to fraction form
    10,686.92/16,028.08 = 4,111.88/x
  3. Step 3: Cross multiply
    10,686.92x = 16,028.08 × 4,111.88
  4. Step 4: Simplify right side
    10,686.92x = 65,905,451.17
  5. Step 5: Solve for x
    x = 65,905,451.17/10,686.92
  6. Step 6: Final answer
    x = 6,166.93

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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.