Home / 13,919.82-19,218.24-9,148.26

Finding the Fourth Proportional to 13,919.82, 19,218.24 and 9,148.26

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Solution

The fourth proportional to 13,919.82, 19,218.24 and 9,148.26 is: 12,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.82 : 19,218.24 = 9,148.26 : x
  2. Step 2: Convert to fraction form
    13,919.82/19,218.24 = 9,148.26/x
  3. Step 3: Cross multiply
    13,919.82x = 19,218.24 × 9,148.26
  4. Step 4: Simplify right side
    13,919.82x = 175,813,456.26
  5. Step 5: Solve for x
    x = 175,813,456.26/13,919.82
  6. Step 6: Final answer
    x = 12,630.44

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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.