Home / 12,790.94-19,189.03-5,395.42

Finding the Fourth Proportional to 12,790.94, 19,189.03 and 5,395.42

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Solution

The fourth proportional to 12,790.94, 19,189.03 and 5,395.42 is: 8,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.94 : 19,189.03 = 5,395.42 : x
  2. Step 2: Convert to fraction form
    12,790.94/19,189.03 = 5,395.42/x
  3. Step 3: Cross multiply
    12,790.94x = 19,189.03 × 5,395.42
  4. Step 4: Simplify right side
    12,790.94x = 103,532,876.24
  5. Step 5: Solve for x
    x = 103,532,876.24/12,790.94
  6. Step 6: Final answer
    x = 8,094.24

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Double scale
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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.