Home / 18,538.99-27,812.12-6,852.31

Finding the Fourth Proportional to 18,538.99, 27,812.12 and 6,852.31

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Solution

The fourth proportional to 18,538.99, 27,812.12 and 6,852.31 is: 10,279.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.99 : 27,812.12 = 6,852.31 : x
  2. Step 2: Convert to fraction form
    18,538.99/27,812.12 = 6,852.31/x
  3. Step 3: Cross multiply
    18,538.99x = 27,812.12 × 6,852.31
  4. Step 4: Simplify right side
    18,538.99x = 190,577,268.00
  5. Step 5: Solve for x
    x = 190,577,268.00/18,538.99
  6. Step 6: Final answer
    x = 10,279.81

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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.