Home / 18,075.12-27,114.60-6,388.08

Finding the Fourth Proportional to 18,075.12, 27,114.60 and 6,388.08

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Solution

The fourth proportional to 18,075.12, 27,114.60 and 6,388.08 is: 9,582.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.12 : 27,114.60 = 6,388.08 : x
  2. Step 2: Convert to fraction form
    18,075.12/27,114.60 = 6,388.08/x
  3. Step 3: Cross multiply
    18,075.12x = 27,114.60 × 6,388.08
  4. Step 4: Simplify right side
    18,075.12x = 173,210,233.97
  5. Step 5: Solve for x
    x = 173,210,233.97/18,075.12
  6. Step 6: Final answer
    x = 9,582.80

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1.5x scale

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.