Home / 10,917.89-16,376.04-3,897.11

Finding the Fourth Proportional to 10,917.89, 16,376.04 and 3,897.11

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Solution

The fourth proportional to 10,917.89, 16,376.04 and 3,897.11 is: 5,845.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.89 : 16,376.04 = 3,897.11 : x
  2. Step 2: Convert to fraction form
    10,917.89/16,376.04 = 3,897.11/x
  3. Step 3: Cross multiply
    10,917.89x = 16,376.04 × 3,897.11
  4. Step 4: Simplify right side
    10,917.89x = 63,819,147.36
  5. Step 5: Solve for x
    x = 63,819,147.36/10,917.89
  6. Step 6: Final answer
    x = 5,845.38

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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.