Home / 18,102.12-27,145.80-7,002.60

Finding the Fourth Proportional to 18,102.12, 27,145.80 and 7,002.60

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Solution

The fourth proportional to 18,102.12, 27,145.80 and 7,002.60 is: 10,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.12 : 27,145.80 = 7,002.60 : x
  2. Step 2: Convert to fraction form
    18,102.12/27,145.80 = 7,002.60/x
  3. Step 3: Cross multiply
    18,102.12x = 27,145.80 × 7,002.60
  4. Step 4: Simplify right side
    18,102.12x = 190,091,179.08
  5. Step 5: Solve for x
    x = 190,091,179.08/18,102.12
  6. Step 6: Final answer
    x = 10,501.05

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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.