Home / 13,965.14-19,249.40-11,442.80

Finding the Fourth Proportional to 13,965.14, 19,249.40 and 11,442.80

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Solution

The fourth proportional to 13,965.14, 19,249.40 and 11,442.80 is: 15,772.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.14 : 19,249.40 = 11,442.80 : x
  2. Step 2: Convert to fraction form
    13,965.14/19,249.40 = 11,442.80/x
  3. Step 3: Cross multiply
    13,965.14x = 19,249.40 × 11,442.80
  4. Step 4: Simplify right side
    13,965.14x = 220,267,034.32
  5. Step 5: Solve for x
    x = 220,267,034.32/13,965.14
  6. Step 6: Final answer
    x = 15,772.63

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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.