Home / 18,425.12-27,639.64-6,740.88

Finding the Fourth Proportional to 18,425.12, 27,639.64 and 6,740.88

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Solution

The fourth proportional to 18,425.12, 27,639.64 and 6,740.88 is: 10,112.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.12 : 27,639.64 = 6,740.88 : x
  2. Step 2: Convert to fraction form
    18,425.12/27,639.64 = 6,740.88/x
  3. Step 3: Cross multiply
    18,425.12x = 27,639.64 × 6,740.88
  4. Step 4: Simplify right side
    18,425.12x = 186,315,496.48
  5. Step 5: Solve for x
    x = 186,315,496.48/18,425.12
  6. Step 6: Final answer
    x = 10,112.04

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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.