Home / 10,493.18-15,739.81-3,919.30

Finding the Fourth Proportional to 10,493.18, 15,739.81 and 3,919.30

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Solution

The fourth proportional to 10,493.18, 15,739.81 and 3,919.30 is: 5,878.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,493.18 : 15,739.81 = 3,919.30 : x
  2. Step 2: Convert to fraction form
    10,493.18/15,739.81 = 3,919.30/x
  3. Step 3: Cross multiply
    10,493.18x = 15,739.81 × 3,919.30
  4. Step 4: Simplify right side
    10,493.18x = 61,689,037.33
  5. Step 5: Solve for x
    x = 61,689,037.33/10,493.18
  6. Step 6: Final answer
    x = 5,878.96

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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.