Home / 18,420.12-27,632.14-6,735.88

Finding the Fourth Proportional to 18,420.12, 27,632.14 and 6,735.88

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Solution

The fourth proportional to 18,420.12, 27,632.14 and 6,735.88 is: 10,104.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.12 : 27,632.14 = 6,735.88 : x
  2. Step 2: Convert to fraction form
    18,420.12/27,632.14 = 6,735.88/x
  3. Step 3: Cross multiply
    18,420.12x = 27,632.14 × 6,735.88
  4. Step 4: Simplify right side
    18,420.12x = 186,126,779.18
  5. Step 5: Solve for x
    x = 186,126,779.18/18,420.12
  6. Step 6: Final answer
    x = 10,104.54

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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.