Home / 10,400.77-15,601.35-2,609.38

Finding the Fourth Proportional to 10,400.77, 15,601.35 and 2,609.38

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Solution

The fourth proportional to 10,400.77, 15,601.35 and 2,609.38 is: 3,914.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.77 : 15,601.35 = 2,609.38 : x
  2. Step 2: Convert to fraction form
    10,400.77/15,601.35 = 2,609.38/x
  3. Step 3: Cross multiply
    10,400.77x = 15,601.35 × 2,609.38
  4. Step 4: Simplify right side
    10,400.77x = 40,709,772.66
  5. Step 5: Solve for x
    x = 40,709,772.66/10,400.77
  6. Step 6: Final answer
    x = 3,914.11

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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.