Home / 13,079.15-19,618.85-5,183.58

Finding the Fourth Proportional to 13,079.15, 19,618.85 and 5,183.58

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Solution

The fourth proportional to 13,079.15, 19,618.85 and 5,183.58 is: 7,775.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.15 : 19,618.85 = 5,183.58 : x
  2. Step 2: Convert to fraction form
    13,079.15/19,618.85 = 5,183.58/x
  3. Step 3: Cross multiply
    13,079.15x = 19,618.85 × 5,183.58
  4. Step 4: Simplify right side
    13,079.15x = 101,695,852.57
  5. Step 5: Solve for x
    x = 101,695,852.57/13,079.15
  6. Step 6: Final answer
    x = 7,775.42

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1.5x scale

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.