Home / 12,919.68-17,846.72-10,122.44

Finding the Fourth Proportional to 12,919.68, 17,846.72 and 10,122.44

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Solution

The fourth proportional to 12,919.68, 17,846.72 and 10,122.44 is: 13,982.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.68 : 17,846.72 = 10,122.44 : x
  2. Step 2: Convert to fraction form
    12,919.68/17,846.72 = 10,122.44/x
  3. Step 3: Cross multiply
    12,919.68x = 17,846.72 × 10,122.44
  4. Step 4: Simplify right side
    12,919.68x = 180,652,352.40
  5. Step 5: Solve for x
    x = 180,652,352.40/12,919.68
  6. Step 6: Final answer
    x = 13,982.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.