Home / 18,145.44-25,043.45-11,075.90

Finding the Fourth Proportional to 18,145.44, 25,043.45 and 11,075.90

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Solution

The fourth proportional to 18,145.44, 25,043.45 and 11,075.90 is: 15,286.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.44 : 25,043.45 = 11,075.90 : x
  2. Step 2: Convert to fraction form
    18,145.44/25,043.45 = 11,075.90/x
  3. Step 3: Cross multiply
    18,145.44x = 25,043.45 × 11,075.90
  4. Step 4: Simplify right side
    18,145.44x = 277,378,567.26
  5. Step 5: Solve for x
    x = 277,378,567.26/18,145.44
  6. Step 6: Final answer
    x = 15,286.41

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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.