Home / 18,075.60-27,114.24-6,390

Finding the Fourth Proportional to 18,075.60, 27,114.24 and 6,390

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Solution

The fourth proportional to 18,075.60, 27,114.24 and 6,390 is: 9,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.60 : 27,114.24 = 6,390 : x
  2. Step 2: Convert to fraction form
    18,075.60/27,114.24 = 6,390/x
  3. Step 3: Cross multiply
    18,075.60x = 27,114.24 × 6,390
  4. Step 4: Simplify right side
    18,075.60x = 173,259,993.60
  5. Step 5: Solve for x
    x = 173,259,993.60/18,075.60
  6. Step 6: Final answer
    x = 9,585.30

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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.