Home / 10,765.50-16,147.65-3,369.09

Finding the Fourth Proportional to 10,765.50, 16,147.65 and 3,369.09

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Solution

The fourth proportional to 10,765.50, 16,147.65 and 3,369.09 is: 5,053.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.50 : 16,147.65 = 3,369.09 : x
  2. Step 2: Convert to fraction form
    10,765.50/16,147.65 = 3,369.09/x
  3. Step 3: Cross multiply
    10,765.50x = 16,147.65 × 3,369.09
  4. Step 4: Simplify right side
    10,765.50x = 54,402,886.14
  5. Step 5: Solve for x
    x = 54,402,886.14/10,765.50
  6. Step 6: Final answer
    x = 5,053.45

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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.