Home / 10,160.77-15,239.58-3,919.87

Finding the Fourth Proportional to 10,160.77, 15,239.58 and 3,919.87

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Solution

The fourth proportional to 10,160.77, 15,239.58 and 3,919.87 is: 5,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,160.77 : 15,239.58 = 3,919.87 : x
  2. Step 2: Convert to fraction form
    10,160.77/15,239.58 = 3,919.87/x
  3. Step 3: Cross multiply
    10,160.77x = 15,239.58 × 3,919.87
  4. Step 4: Simplify right side
    10,160.77x = 59,737,225.25
  5. Step 5: Solve for x
    x = 59,737,225.25/10,160.77
  6. Step 6: Final answer
    x = 5,879.20

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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.