Home / 10,699.36-16,051.78-4,123.78

Finding the Fourth Proportional to 10,699.36, 16,051.78 and 4,123.78

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Solution

The fourth proportional to 10,699.36, 16,051.78 and 4,123.78 is: 6,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,699.36 : 16,051.78 = 4,123.78 : x
  2. Step 2: Convert to fraction form
    10,699.36/16,051.78 = 4,123.78/x
  3. Step 3: Cross multiply
    10,699.36x = 16,051.78 × 4,123.78
  4. Step 4: Simplify right side
    10,699.36x = 66,194,009.33
  5. Step 5: Solve for x
    x = 66,194,009.33/10,699.36
  6. Step 6: Final answer
    x = 6,186.73

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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.